AvistaGas.pdf

Issued June 2, 1999 Effective July 9, 1999
Issued by Avista Utilities
By , Manager, Rates & Tariff Administration
A
I.P.U.C. No. 27 Original Sheet A
AVISTA CORPORATION
d/b/a Avista Utilities
NAMING
RATES, RULES AND REGULATIONS
GOVERNING NATURAL GAS
SERVICE
IN THE AREA SERVED BY THE COMPANY
IN
Bonner, Boundary, Kootenai, Latah, Nez Perce
and Shoshone Counties, Idaho
IDAHO PUBLIC UTILITIES COMMISSION
APPROVED EFFECTIVE
July 6, 1999 July 9, 1999
Myrna J. Walters Secretary
IDAHO PUBLIC UTILITIES COMMISSION
APPROVED EFFECTIVE
July 6, 1999 July 9, 1999
Myrna J. Walters Secretary

Tenth Revision Sheet B
Canceling
I.P.U.C. No. 27 Ninth Revision Sheet B

AVISTA CORPORATION
d/b/a Avista Utilities
Issued September 2, 2022 Effective September 2, 2022
Issued by Avista Utilities
By Patrick Ehrbar, Director of Regulatory Affairs

INDEX PAGE - IDAHO

Schedule Sheet
No. Title of Sheet No.

Title Page ....................................................................................... A
Index. ............................................................................................. B
Definition of Rate Area ................................................................... C
101 General Service - Firm - Idaho. ...................................................... 101
111 Large General Service - Firm - Idaho ............................................. 111
112 Large General Service - Firm - Idaho ............................................. 112
131 Interruptible Service - Idaho (Off Peak) .......................................... 131
132 Interruptible Service - Idaho (Off Peak) .......................................... 132
146 Transportation Service for Customer-Owned Gas - Idaho ............. 146
149 Special Purchase Gas Cost Adjustment - Idaho ............................ 149
150 Purchase Gas Cost Adjustment - Idaho. ........................................ 150
151 Gas Extension Policy – Idaho (Residential Service) ...................... 151
152 Gas Extension Policy – Idaho (Commercial and Industrial)............ 152
153 Temporary Service – Idaho ............................................................ 153
154 Rural Gas Service Connections – Idaho (From facilities operating
at pressure of 75 pounds gage or more) ...................................... 154
155 Gas Rate Adjustment - Idaho ......................................................... 155
158 Tax Adjustment Schedule - Idaho .................................................. 158
170 Idaho Rules and Regulations ......................................................... 170
175 Fixed Cost Adjustment - Idaho ....................................................... 175
176 Tax Customer Credit - Idaho .......................................................... 176
181 Natural Gas Transportation Service Terms and Conditions ........... 181
182 Plan For Natural Gas Service Curtailment. .................................... 182
185 Idaho Service Quality Program ...................................................... 185
190 Natural Gas Efficiency Programs – Idaho ...................................... 190
191 Energy Efficiency Rider Adjustment - Idaho ................................... 191
195 Optional Renewable Natural Gas – Idaho……………………………195

IDAHO PUBLIC UTILITIES COMMISSION
Approved Effective
Sept. 20, 2022 Sept. 2, 2022
Jan Noriyuki Secretary
Issued June 2, 1999 Effective July 9, 1999
Issued by Avista Utilities
By , Manager, Rates & Tariff Administration
C
I.P.U.C. No. 27 Original Sheet C
AVISTA CORPORATION
d/b/a Avista Utilities
IDAHO
DEFINITION OF RATE AREA
Rate Schedules in this tariff are available to Customers in the territory
served by Company.
The territory served by Company includes the following incorporated townsand environs thereof:
Bonners Ferry
Bovill
Coeur d'AleneDalton Gardens
Deary
Fernan Village
Genesee
HaydenHayden Lake
Kellogg
Kootenai
Lewiston
MoscowMullan
Osburn
Pinehurst
Ponderay
Post FallsRathdrum
Sandpoint
Smelterville
Troy
WallaceWardner
IDAHO PUBLIC UTILITIES COMMISSION
APPROVED EFFECTIVE
July 6, 1999 July 9, 1999
Myrna J. Walters Secretary
IDAHO PUBLIC UTILITIES COMMISSION
APPROVED EFFECTIVE
July 6, 1999 July 9, 1999
Myrna J. Walters Secretary

Sixteenth Revision Sheet 101
Canceling

By Patrick Ehrbar ,Director of Regulatory Affairs

SCHEDULE 101

GENERAL SERVICE - FIRM - IDAHO

AVAILABLE:
To Customers in the State of Idaho where Company has natural gas service
available.

APPLICABLE:
To firm gas service for any purpose when all such service used on the
premises is supplied at one point of delivery through a single meter.

MONTHLY RATE: Per Meter
Per Month

Basic charge $15.00

Charge Per Therm:

Base Rate 33.371¢

Minimum Charge: $15.00

The above Monthly Rates are subject to increases or decreases as set forth in Tax
Adjustment Schedule 158, Purchase Gas Cost Adjustment Schedule 150, Gas
Rate Adjustment Schedule 155, Fixed Cost Adjustment Schedule 175, Tax
Customer Credit Schedule 176 and Energy Efficiency Rider Adjustment Schedule
191.

SPECIAL TERMS AND CONDITIONS:
Service under this schedule is subject to the Rules and Regulations
contained in this tariff.

IDAHO PUBLIC UTILITIES COMMISSIONApproved EffectiveSept. 18, 2023 Sept. 1, 2023 Per ON 35927 & 35909 Jan Noriyuki Secretary

Seventeenth Revision Sheet 111
Canceling

Issued by Avista Utilities
By Patrick Ehrbar , Director of Regulatory Affairs

SCHEDULE 111
LARGE GENERAL SERVICE - FIRM - IDAHO

AVAILABLE:
To Customers in the State of Idaho where Company has natural gas service
available.

APPLICABLE:
To firm gas service for any purpose, subject to execution of a service
agreement for a term of one year or longer. All such service used on the premises
shall be supplied at one point of delivery through a single meter.

MONTHLY RATE:

Charge Per Therm:
Per Meter
Base Rate Per Month

First 200 $0.40870
Next 800 $0.32368
Next 9,000 $0.23575
All Over $0.17764

Minimum Charge: $81.74 The minimum charge calculation is based solely
on the base rate per therm noted above and is not inclusive of the adder schedules.

The above Monthly Rates are subject to increases or decreases as set forth in Tax
Adjustment Schedule 158, Purchase Gas Cost Adjustment Schedule 150, Gas
Rate Adjustment Schedule 155, Fixed Cost Adjustment Schedule 175, Tax
Customer Credit Schedule 176 and Energy Efficiency Rider Adjustment Schedule
191.
IDAHO PUBLIC UTILITIES COMMISSIONApproved EffectiveSept. 18, 2023 Sept. 1, 2023 Per ON 35927 & 35909 Jan Noriyuki Secretary
IDAHO PUBLIC UTILITIES COMMISSION
Approved Effective
Sept. 27, 2010 Oct. 1, 2010
Per O.N. 32070
Jean D. Jewell Secretary

Eighteenth Revision Sheet 112
Canceling

Issued by Avista Utilities
By Patrick Ehrbar , Director of Regulatory Affairs

SCHEDULE 112

LARGE GENERAL SERVICE - FIRM - IDAHO

AVAILABLE:
To Customers in the State of Idaho where Company has natural gas service
available. Customers taking service under this Schedule beginning on or after
March 1, 2002 must have been previously served under Schedule 146 –
Transportation Service for Customer–Owned Gas.

APPLICABLE:
To firm gas service for any purpose, subject to execution of a service
agreement for a term of one year or longer. All such service used on the premises
shall be supplied at one point of delivery through a single meter.

MONTHLY RATE:

Charge Per Therm:
Per Meter
Base Rate Per Month

First 200 $0.40870
Next 800 $0.32368
Next 9,000 $0.23575
All Over $0.17764

Minimum Charge: $81.74 The minimum charge calculation is based solely
on the base rate per therm noted above and is not inclusive of the adder schedules.

The above Monthly Rates are subject to increases or decreases as set forth in Tax
Adjustment Schedule 158, Purchase Gas Cost Adjustment Schedule 150, Gas
Rate Adjustment Schedule 155, Fixed Cost Adjustment Schedule 175, Tax
Customer Credit Schedule 176 and Energy Efficiency Rider Adjustment Schedule
191.
IDAHO PUBLIC UTILITIES COMMISSIONApproved EffectiveSept. 18, 2023 Sept. 1, 2023 Per ON 35927 & 35909 Jan Noriyuki Secretary
IDAHO PUBLIC UTILITIES COMMISSION
Approved Effective
Sept. 27, 2010 Oct. 1, 2010
Per O.N. 32070
Jean D. Jewell Secretary

Sixteenth Revision Sheet 131
Canceling
I.P.U.C. No.27 Fifteenth Revision Sheet 131

AVISTA CORPORATION
d/b/a Avista Utilities
Issued July 15, 2022 Effective September 1, 2022
Issued by Avista Utilities
By Patrick Ehrbar, Director of Regulatory Affairs

SCHEDULE 131

INTERRUPTIBLE SERVICE - IDAHO

AVAILABLE:
To Customers in the State of Idaho whose requirements exceed 250,000
therms of gas per year and who comply with the Special Terms and Conditions set
forth below, provided: (1) A volume of off-peak interruptible gas for the service
requested is available to the Company and, (2) The Company's existing distribution
system has capacity, in excess of its existing requirements for firm gas service,
adequate for the service requested by Customer.

APPLICABLE:
To interruptible gas service for any purpose subject to provisions of a
service agreement for a term of one year or longer. All such service used on the
premises shall be supplied at one point of delivery and metering.

MONTHLY RATE: Per Meter
Per Month
Charge Per Therm:

Base Rate 20.379¢

ANNUAL MINIMUM:
Each Customer shall be subject to an Annual Minimum Deficiency Charge if
their gas usage during the prior year did not equal or exceed 250,000 therms.
Such annual Minimum Deficiency Charge shall be determined by subtracting the
Customer’s actual usage for the twelve-month period ending each August from
250,000 therms multiplied by 20.379¢ per therm.

The above Monthly Rates are subject to increases or decreases as set forth in Tax
Adjustment Schedule 158, Purchase Gas Cost Adjustment Schedule 150, Gas
Rate Adjustment Schedule 155, Tax Customer Credit Schedule 176 and Energy
Efficiency Rider Adjustment Schedule 191.
IDAHO PUBLIC UTILITIES COMMISSION
Approved Effective
Aug. 9, 2022 Sept. 1, 2022
Per ON 35156
Jan Noriyuki Secretary

Eighteenth Revision Sheet 132
Canceling
I.P.U.C. No. 27 Seventeenth Revision Sheet 132

AVISTA CORPORATION
d/b/a Avista Utilities
Issued July 15, 2022 Effective September 1, 2022
Issued by Avista Utilities
By Patrick Ehrbar, Director of Regulatory Affairs

SCHEDULE 132

INTERRUPTIBLE SERVICE - IDAHO

AVAILABLE:
To Customers in the State of Idaho whose requirements exceed 250,000 therms of
gas per year and who comply with the Special Terms and Conditions set forth below,
provided: (1) A volume of off-peak interruptible gas for the service requested is available
to the Company and, (2) The Company's existing distribution system has capacity, in
excess of its existing requirements for firm gas service, adequate for the service
requested by Customer. Customers taking service under this Schedule beginning on or
after March 1, 2002 must have been previously served under Schedule 146 –
Transportation Service for Customer-Owned Gas.

APPLICABLE:
To interruptible gas service for any purpose subject to provisions of a service
agreement for a term of one year or longer. All such service used on the premises
shall be supplied at one point of delivery and metering.

MONTHLY RATE: Per Meter
Per Month
Charge Per Therm:

Base Rate 20.379¢

ANNUAL MINIMUM:
Each Customer shall be subject to an Annual Minimum Deficiency Charge if
their gas usage during the prior year did not equal or exceed 250,000 therms. Such
annual Minimum Deficiency Charge shall be determined by subtracting the
Customer’s actual usage for the twelve-month period ending each August from
250,000 therms multiplied by 20.379¢ per therm.

The above Monthly Rates are subject to increases or decreases as set forth in Tax
Adjustment Schedule 158, Purchase Gas Cost Adjustment Schedule 150, Gas Rate
Adjustment Schedule 155, Tax Customer Credit Schedule 176 and Energy
Efficiency Rider Adjustment Schedule 191.
IDAHO PUBLIC UTILITIES COMMISSION
Approved Effective
Aug. 9, 2022 Sept. 1, 2022
Per ON 35156
Jan Noriyuki Secretary

Fifteenth Revision Sheet 146
Canceling
I.P.U.C. No.27 Fourteenth Revision Sheet 146

AVISTA CORPORATION
d/b/a Avista Utilities
Issued July 15, 2022 Effective September 1, 2022
Issued by Avista Utilities
By Patrick Ehrbar, Director of Regulatory Affairs

SCHEDULE 146

TRANSPORTATION SERVICE FOR CUSTOMER-OWNED GAS - IDAHO

AVAILABLE:
To Commercial and Industrial Customers in the State of Idaho whose
requirements exceed 250,000 therms of gas per year provided that the Company's
existing distribution system has capacity adequate for the service requested by
Customer.

APPLICABLE:

To transportation service for a Customer-owned supply of natural gas from the
Company’s point of interconnection with its Pipeline Transporter to the Company’s
point of interconnection with the Customer. Service shall be supplied at one point of
delivery and metering for use by a single customer.

MONTHLY RATE:

$300.00 Customer Charge, plus

Charge Per Therm:

Base Rate 12.232¢

ANNUAL MINIMUM:
$34,180 unless a higher minimum is required under contract to cover special
conditions.

The above Monthly Rates are subject to increases or decreases as set forth in Tax
Adjustment Schedule 158, Gas Rate Adjustment Schedule 155, Tax Customer Credit
Schedule 176 and Energy Efficiency Rider Adjustment Schedule 191.

IDAHO PUBLIC UTILITIES COMMISSION
Approved Effective
Aug. 9, 2022 Sept. 1, 2022
Per ON 35156
Jan Noriyuki Secretary
Issued June 2, 1999 Effective July 9, 1999
Issued by Avista Utilities
By , Manager, Rates & Tariff Administration
149
I.P.U.C. No. 27 Original Sheet 149
AVISTA CORPORATION
d/b/a Avista Utilities
SCHEDULE 149
SPECIAL PURCHASE GAS COST ADJUSTMENT - IDAHO
APPLICABLE:
To Customers taking service under Schedule 131, Interruptible Service.
PURPOSE:
To pass through adjustments in purchased gas costs resulting from
adjustments in the rates of the Company's supplier, Northwest Pipeline
Corporation, pursuant to a tariff approved by the Federal Energy RegulatoryCommission authorizing pipeline commodity rate changes on one day's notice.
The commodity charge for Interruptible Service Schedule 131 shall be adjusted by
the rate shown in column (e) below.
RATE:
Per Therm Pipeline Commodity Rate Adjustments
Current
Adjustment
Currently to ScheduleMaximumCurrentCumulativeEffective131, Inter-
Commodity Commodity Commodity Commodity ruptible
Rate Adjustment Adjustment Rate Service
(a)(b)(c)(d)(e)
21.385¢0.000¢0.000¢21.385¢0.000¢
SPECIAL TERMS AND CONDITIONS:
The above rate is subject to the provisions of Tax Adjustment Schedule 158.
IDAHO PUBLIC UTILITIES COMMISSION
APPROVED EFFECTIVE
July 6, 1999 July 9, 1999
Myrna J. Walters Secretary

Thirty-Third Revision Sheet 150
Replacing
I.P.U.C. No.27 Thirty-Second Revision Sheet 150

150
AVISTA CORPORATION
d/b/a Avista Utilities
Issued September 1, 2023 Effective November 1, 2023
Issued by Avista Utilities
By Patrick Ehrbar – Director of Regulatory Affairs

SCHEDULE 150
PURCHASE GAS COST ADJUSTMENT - IDAHO

APPLICABLE:
To Customers in the State of Idaho where Company has natural gas service
available.

PURPOSE:
To pass through changes in costs resulting from purchasing and transporting
natural gas, to become effective as noted below.

RATE:
(a) The retail rates of firm gas Schedules 101, 111 and 112 are to be increased
by 37.718¢ per therm in all blocks of these rate schedules.

(b) The rates of interruptible Schedules 131 and 132 are to be increased by
28.834¢ per therm.

(c) The rate for transportation under Schedule 146 is to be decreased by
0.000¢ per therm.

WEIGHTED AVERAGE GAS COST:
The above rate changes are based on the following weighted average cost of gas
per therm as of the effective date shown below:
Demand Commodity Total
Schedules 101 8.884¢ 28.834¢ 37.718¢
Schedules 111 and 112 8.884¢ 28.834¢ 37.718¢
Schedules 131 and 132 0.000¢ 28.834¢ 28.834¢
The above amounts include a gross revenue factor.

Demand Commodity Total
Schedules 101 8.850¢ 28.725¢ 37.575¢
Schedules 111 and 112 8.850¢ 28.725¢ 37.575¢
Schedules 131 and 132 0.000¢ 28.725¢ 28.725¢
The above amounts do not include a gross revenue factor.

BALANCING ACCOUNT:
The Company will maintain a Purchase Gas Adjustment (PGA) Balancing Account
whereby monthly entries into this Balancing Account will be made to reflect differences
between the actual purchased gas costs collected from customers and the actual
purchased gas costs incurred by the Company. Those differences are then collected from
or refunded to customers under Schedule 155 – Gas Rate Adjustment.

IDAHO PUBLIC UTILITIES COMMISSIONApproved EffectiveOct. 27, 2023 Nov. 1, 2023 Per ON 35970 Jan Noriyuki Secretary
IDAHO PUBLIC UTILITIES COMMISSION
Approved Effective
Dec. 13, 2010 Jan. 1, 2011
Jean D. Jewell Secretary
Issued June 2, 1999 Effective July 9, 1999
Issued by Avista Utilities
By , Manager, Rates & Tariff Administration
151
I.P.U.C. No. 27 Original Sheet 151
AVISTA CORPORATION
d/b/a Avista Utilities
SCHEDULE 151
GAS EXTENSION POLICY - IDAHO
(Residential Service)
AVAILABLE:
For service piping or main extensions to the Company's distribution facilities where
there is available, or will be made available, to the Company for resale a volume of gasadequate for the service requested, elevation and construction conditions permit and one
or more bona fide, prospective residential customers make application for an extensionthereof for permanent continuing uses.
APPLICABLE:
To service piping or main extensions installed, owned, operated and maintained bythe Company.
DEFINITIONS:
"Extension" shall be the distribution main, pressure regulating devices, service
piping and appurtenances required to connect existing facilities of the Company, havingcapacity adequate to supply the gas service requested, to the "meter location."
"Meter Location" shall be the point at which gas shall be delivered to and received
by the applicant, shall be out-of-doors, and shall be at a point designated by the Companysubject to the applicant's approval, provided that the length of service piping shall notexceed, by more than ten feet, the shortest distance between the Company's distribution
main and the building to be served.
"Extension Cost" shall be the Company's estimate of the cost of furnishing andinstalling an extension assuming the existing distribution main is located in the center of
the street or alley.
"Annual Revenue" shall be the Company's estimate of the annual payments under
the applicable rate for the gas service requested.
A "year" shall begin with the first meter reading date after service is available and
shall end twelve months thereafter.
ACCESS TO PREMISES:The applicant shall grant to the Company the right to remove (and replace) or
otherwise disturb, lawns, shrubs or other property on the applicant's premises as
reasonably necessary for the purpose of installing an extension hereunder.
IDAHO PUBLIC UTILITIES COMMISSION
APPROVED EFFECTIVE
July 6, 1999 July 9, 1999
Myrna J. Walters Secretary
Issued June 2, 1999 Effective July 9, 1999
Issued by Avista Utilities
By , Manager, Rates & Tariff Administration
151A
I.P.U.C. No. 27 Original Sheet 151A
AVISTA CORPORATION
d/b/a Avista Utilities
SCHEDULE 151 - Continued
EXTENSION RULES:
1.The Company will furnish and install, at its expense, an extension if
the annual revenue therefrom will be not less than one-third the extension cost.
2.The Company will furnish and install, at its expense, an extension if
the annual revenue therefrom will be more than one-sixth but less than one-thirdthe extension cost provided the applicant agrees to pay, for gas service for a
period of five years, an annual amount equal to not less than one-third the
extension cost.
3.The Company will not be required to construct extensions where the
annual revenue will be less than one-sixth the extension cost.4.Facilities provided by the Company in accordance with Rule 2 above
will be deemed an extension (hereafter called "existing extension") during the first
five years that service is available therefrom. Applicants for service involving an
addition to an "existing extension" during such five years will be considered as
applicants for a new extension except that the annual minimum payments of suchapplicants for the remainder of the five year term of the existing extension shall not
be less than the minimum payments required considering the new extension and
the existing extension as a "combined extension." In the event the annual
minimum payments required for the combined extension are less than those
required for the existing extension, annual minimum payments of customers on theexisting extension will be reduced to such lesser payments for the remainder of the
original five-year term.
5.The Company may require applicants to advance to the Company a
sum equal to 12 minimum monthly payments under the applicable schedule or
agreement. Such advance, to be paid before the Company is required to initiateconstruction, shall be applied as a credit to the customer's gas account for the 12
months beginning with the first meter reading after gas service is made available.
IDAHO PUBLIC UTILITIES COMMISSION
APPROVED EFFECTIVE
July 6, 1999 July 9, 1999
Myrna J. Walters Secretary
Issued June 2, 1999 Effective July 9, 1999
Issued by Avista Utilities
By , Manager, Rates & Tariff Administration
152
I.P.U.C. No. 27 Original Sheet 152
AVISTA CORPORATION
d/b/a Avista Utilities
SCHEDULE 152
GAS EXTENSION POLICY - IDAHO(Commercial and Industrial)
AVAILABLE:
For service piping or main extensions to the Company's distribution facilities
where there is available, or will be made available, to the Company for resale avolume of gas adequate for the service requested, elevation and construction
conditions permit and one or more bona fide, prospective commercial and/or
industrial customers make application for an extension thereof for permanent
continuing uses.
APPLICABLE:
To service piping or main extensions installed, owned, operated and
maintained by the Company.
DEFINITIONS:"Extension" shall be the distribution main, pressure regulating devices,
service piping and appurtenances required to connect existing facilities of the
Company, having capacity adequate to supply the gas service requested, to the
"meter location."
"Meter Location" shall be the point at which gas shall be delivered to and
received by the applicant, and shall be at a location designated by the Company.
"Extension Cost" shall be the Company's estimate of the cost of furnishing
and installing an extension assuming the existing distribution main is located in thecenter of the street or alley.
"Annual Revenue" shall be the Company's estimate of the annual payments
under the applicable rate for the gas service requested.
A "year" shall begin with the first meter reading date after service is
available and shall end 12 months thereafter.
ACCESS TO PREMISES:
The applicant shall grant to the Company the right to remove (and replace)or otherwise disturb property on the applicant's premises as reasonably necessary
for the purpose of installing an extension hereunder.
IDAHO PUBLIC UTILITIES COMMISSION
APPROVED EFFECTIVE
July 6, 1999 July 9, 1999
Myrna J. Walters Secretary
Issued June 2, 1999 Effective July 9, 1999
Issued by Avista Utilities
By , Manager, Rates & Tariff Administration
152A
I.P.U.C. No. 27 Original Sheet 152A
AVISTA CORPORATION
d/b/a Avista Utilities
SCHEDULE 152 - Continued
EXTENSION RULE:
The Company will furnish and install, at its expense, an extension if the
annual revenue therefrom will be not less than one-third the extension cost,
provided the prospective permanence of the applicant, characteristics of gas load,
and other factors are acceptable to the Company.
The Company may require an advance construction payment, an advance
payment of bills for gas service, and/or the execution of a contract providing for the
conditions of service and the payment by the applicant of a prescribed minimum
annual amount for said service.
IDAHO PUBLIC UTILITIES COMMISSION
APPROVED EFFECTIVE
July 6, 1999 July 9, 1999
Myrna J. Walters Secretary
Issued June 2, 1999 Effective July 9, 1999
Issued by Avista Utilities
By , Manager, Rates & Tariff Administration
153
I.P.U.C. No. 27 Original Sheet 153
AVISTA CORPORATION
d/b/a Avista Utilities
SCHEDULE 153
TEMPORARY SERVICE - IDAHO
AVAILABLE:
In all territory where the Company has natural gas service available.
APPLICABLE:
The Company will, subject to the availability of gas supply and facilities,
furnish and install (and subsequently remove) facilities required to supply gas
service for use for a temporary period. The Customer will pay in advance theestimated cost less net salvage of all facilities installed by the Company to supply
temporary service.
MONTHLY RATE:
Service will be supplied at the Monthly Rate applicable to the class ofservice, provided that if the total estimated cost of facilities installed by the
Company minus the advance by the customer exceeds $100.00, a rental charge of
one per cent of such excess cost of facilities will be added to the monthly bill.
RULES AND REGULATIONS:Service under this schedule is subject to Rules and Regulations contained
in this tariff.
IDAHO PUBLIC UTILITIES COMMISSION
APPROVED EFFECTIVE
July 6, 1999 July 9, 1999
Myrna J. Walters Secretary
Issued June 2, 1999 Effective July 9, 1999
Issued by Avista Utilities
By , Manager, Rates & Tariff Administration
154
I.P.U.C. No. 27 Original Sheet 154
AVISTA CORPORATION
d/b/a Avista Utilities
SCHEDULE 154
Rural Gas Service Connections - Idaho(From facilities operating at pressure of 75 pounds gage or more)
AVAILABLE: For connection to and supply of gas from facilities existing in unincorporated
areas where there is available, or will be made available, to the Company for resale avolume of gas adequate for the service requested, elevation and construction conditions
permit and one or more bona fide, prospective residential or farm customers makeapplication for gas service for permanent, continuing uses.
APPLICABLE: To service connections to be furnished, installed, owned, maintained, andoperated by the Company to supply gas service, in rural areas, from facilities operating at
pressure of 75 pounds gage or more.
DEFINITIONS:"Service Connection" shall be the pipe tap, shut-off valve, pressure reducingdevice(s), automatic relief valve, meter, odorizer, enclosing facility, appurtenances and
service pipe, 1 inch or smaller, extending from the existing main for a distance not in
excess of 100 feet per customer, provided, however, that where said main is located on
the right of way of a public road, said 100 feet shall be taken as beginning at the center ofsuch right of way.
"Location of Service Connection" shall be at a point designated by the Company."Service Connection Cost" shall be the Company's estimate of the cost of
furnishing and installing a service connection.
"Annual Revenue" shall be the Company's estimate of the annual payments underthe applicable rate for the gas service requested.
"Customer Service Line" shall be the pipe and appurtenances beginning at the end
of the Company's service connection and extending to the point or points of utilization,
including pressure reducing device(s) with built-in automatic shut-off, all of which shall beof a size and type conforming to the Company's specifications."Point of Delivery" shall be the point at which the customer service line joins the
service connection, and shall be the point at which gas shall be delivered to and received
by the customer.
"Meter Location" shall be at the outlet side of the Company's pressure reducingdevice(s) provided, however, that the Company, at its option, may install its meter on or
adjacent to the premises of the customer.
"Delivery Pressure" - Gas service hereunder shall be delivered to the customerservice line at a pressure determined by the Company to be adequate for the service
requested.
IDAHO PUBLIC UTILITIES COMMISSION
APPROVED EFFECTIVE
July 6, 1999 July 9, 1999
Myrna J. Walters Secretary
Issued June 2, 1999 Effective July 9, 1999
Issued by Avista Utilities
By , Manager, Rates & Tariff Administration
154A
I.P.U.C. No. 27 Original Sheet 154A
AVISTA CORPORATION
d/b/a Avista Utilities
SCHEDULE 154 - continued
SERVICE CONNECTION RULES:1.The Company, at its expense, will furnish, install, maintain and operate aservice connection provided:
a.The annual revenue therefrom is not less than one-third the service
connection cost.
b.The applicant executes an Agreement for Gas Extension and GasService.
c.The applicant, at his expense, installs and owns a safe and
adequate customer service line.
d.The applicant, at his expense, furnishes all necessary right of way.e.The applicant pays to the Company the advance, if any, requiredunder paragraph 5 hereof
2.The Company shall not be required to install a service connection until the
customer service line has been installed, nor be required to install or connect its facility to
said customer service line when such work will be hampered by adverse weather, road,ground or operating conditions.
3.The applicant shall be solely responsible for the operation and maintenanceof his customer service line, all pipes leading therefrom, and all devices and
appurtenances (including but not limited to pressure reducing devices, appliances,
chimneys, flues, etc.) required in connection with the safe and proper use or possession ofthe gas delivered into said customer service line.
4.The Company will exercise reasonable diligence in attending and
maintaining its service connection equipment installed under this schedule. It shall be
recognized, however, that the Company may be unable, from time to time, to service saidequipment to the same degree that it is able to do so in urban areas and there may beoccasions when due to weather or other causes the delivery of gas into the customer's
service line may be interrupted.
5.The Company may require applicant(s) to advance to the Company a sum
equal to the Annual Revenue. The Company will not pay interest on said advance. Saidadvance shall be applied by the Company as payment of the applicable monthly charges
beginning when the use of service is established by the applicant or two (2) months from
the date service is first made available to applicant's premises, whichever is the earlier.6.Upon request of the Company, customer(s) receiving service made
available pursuant to this schedule, shall read the meter, each month, on the datedesignated by the Company and promptly report said reading to the Company.
7.In any month when meter is not read bill will be rendered based on
estimated consumption. When a meter reading shows actual consumptions greater than
(or less than) the estimated consumptions billed, such difference will be billed (or credited)as though used during that month in which the meter was read.
IDAHO PUBLIC UTILITIES COMMISSION
APPROVED EFFECTIVE
July 6, 1999 July 9, 1999
Myrna J. Walters Secretary
Issued June 2, 1999 Effective July 9, 1999
Issued by Avista Utilities
By , Manager, Rates & Tariff Administration
154B
I.P.U.C. No. 27 Original Sheet 154B
AVISTA CORPORATION
d/b/a Avista Utilities
SCHEDULE 154 - continued
SERVICE CONNECTION RULES - continued:8.Except as otherwise provided herein, gas service hereunder shall besupplied in accordance with and subject to the Rules and Regulations of the Company,
governing gas service, on file with the regulatory commissions having jurisdiction and in
effect at the time gas service is delivered hereunder.
IDAHO PUBLIC UTILITIES COMMISSION
APPROVED EFFECTIVE
July 6, 1999 July 9, 1999
Myrna J. Walters Secretary

Twenty-Fifth Revision Sheet 155
Canceling
I.P.U.C. No.27 Twenty-Fourth Revision Sheet 155

155
AVISTA CORPORATION
d/b/a Avista Utilities
Issued September 1, 2023 Effective November 1, 2023

Issued by Avista Utilities
By Patrick Ehrbar, Director of Regulatory Affairs

SCHEDULE 155
GAS RATE ADJUSTMENT - IDAHO

AVAILABLE:
To Customers in the State of Idaho where Company has natural gas service
available.

PURPOSE:
To adjust gas rates for amounts generated by the sources listed below.

MONTHLY RATE:
(a) The rates of firm gas Schedules 101 and 111 are to be
increased by 25.281¢ per therm in all blocks of these rate schedules.
(b) The rate of interruptible gas Schedule 131 is to be decreased by
0.000¢ per therm.
(c) The rate of transportation gas Schedule 146 is to be decreased by 0.000¢
per therm.

SOURCES OF MONTHLY RATE:
Changes in the monthly rates above result from amounts which have been
accumulated in the Purchase Gas Adjustment (PGA) Balancing Account as
described in Schedule 150 – Purchase Gas Cost Adjustment.

SPECIAL TERMS AND CONDITIONS:
The above Monthly Rate is subject to the provisions of Tax Adjustment Schedule
158.

IDAHO PUBLIC UTILITIES COMMISSIONApproved EffectiveOct. 27, 2023 Nov. 1, 2023 Per ON 35970 Jan Noriyuki Secretary

Eleventh Revision Sheet 158
Canceling
I.P.U.C. No.27 Tenth Revision Sheet 158

AVISTA CORPORATION
d/b/a Avista Utilities
Issued January 18, 2024 Effective March 1, 2024
Issued by Avista Utilities
Patrick Ehrbar, Director of Regulatory Affairs

SCHEDULE 158
TAX ADJUSTMENT SCHEDULE - IDAHO
The rate schedule of the Company for natural gas service furnished in Idaho do not include
any portion of municipal occupation, business, excise or use of the streets, taxes or charges. In order
to reimburse the Company for such taxes or charges, amounts equivalent to such taxes or charges
where now imposed, or which may hereafter be imposed, will be billed by the Company to its
customers as set forth below.
APPLICABLE:
To all charges for natural gas service rendered pursuant to this tariff within the jurisdiction
imposing a tax or charge, as provided in Rule 3 of the Rules and Regulations included in this tariff.

TAX ADJUSTMENT:
The rates and charges named in this tariff shall be proportionately increased by an adjustment
equivalent to the amount of the tax or charge imposed by the jurisdiction and effective as listed below:

Idaho Municipality Ordinance Date Ordinance Effective Charge*
Village of Bonners Ferry Ord. No. 209 July 2, 1963 3% franchise fee
City of Coeur d'Alene Ord. No. 2518 July 1, 1993 5% franchise fee
City of Dalton Gardens Ord. No. 168 February 1, 2005 1% Franchise fee
as amended by Ord. No. 171
City of Dover Ord. No. 53 October 1, 2000 1% franchise fee
City of Fernan Lake Village Res. No. 196 Ord. No. 167 March 1, 2024 1% franchise fee
City of Hauser Ord. No. 111 May 1, 1999 1% franchise fee
City of Hayden Ord. No. 392 October 1, 2005 1% franchise fee
City of Hayden Lake Ord. No. 125 January 1, 1995 3% franchise fee
as amended by Ord. No. 131
City of Kellogg Ord. No. 556 October 1, 2012 1% franchise fee
City of Kootenai Ord. No. 112 August 1, 1996 1% franchise fee
City of Lewiston Ord. No. 4256 January 1, 2000 1% franchise fee
City of Moscow Ord. No.2006-06 June, 1 2006 3% franchise fee
City of Mullan Ord. No. 309A May 1, 1997 1% franchise fee
City of Osburn Ord. No. 297 February 1, 2020 1% franchise fee
City of Pinehurst Ord. No. 2022-239 July 1, 2022 1% franchise fee
City of Ponderay Ord. No. 3-17 November 1, 1996 1% franchise fee
City of Post Falls Ord. No. 1015 March 1, 2003 1% franchise fee
City of Rathdrum Ord. No. 377 November 1, 1996 1% franchise fee
City of Sandpoint Ord. No. 1076 March 1, 2003 1% franchise fee
City of Spirit Lake Ord. No. 510 December 1, 2007 1% franchise fee
City of Wallace Ord. No. 95-07 January 1, 1996 1% franchise fee
*Federal bills excluded

Idaho Public Utilities CommissionOffice of the SecretaryACCEPTED FOR FILINGFebruary 29, 2024Boise, Idaho
Issued April 24, 2002 Effective May 31, 2002
Issued by Avista Utilities
By Kelly Norwood , Vice President, Rates & Regulation
First Revision Sheet 170A 170-A
CancelingI.P.U.C. No. 27 Original Sheet 170-A
AVISTA CORPORATION
d/b/a Avista Utilities
IDAHO
RULES AND REGULATIONS
1.ADOPTION OF RULES OF REGULATORY AUTHORITIES:
The rules regulating natural gas service, prescribed by the Idaho Public Utilities
Commission, hereinafter called the Commission, are hereby adopted and by this referenceare made a part of this tariff.
The following customer relations rules are not listed in detail in this tariff: Deposits,
Termination/Discontinuance of Service, Master-Metering, Bills, Complaint Procedures,
Information to Gas Customers, and Meter Reading and Billing Practices. These rules willinstead be found in the Commission's "Utility Customer Relations Rules”, and “Utility
Customer Information Rules”. Current copies of these Rules will be available for
Customer reference at each of the Company's business offices.
2.SCHEDULES AND CONDITIONS:The schedules and conditions specified in this tariff for natural gas service are
subject to change in accordance with the laws of the State of Idaho, or any amendment
thereof. The amount of gas to be furnished here under shall be subject to the amount
available to the Company pursuant to contracts with its pipeline supplier. All schedulesfor natural gas service apply to Customers located on the established mains of Avista
Corporation, hereinafter called the Company.
3.TAX ADJUSTMENT:
The rates named in this tariff shall be proportionately increased to compensate forany county or municipal tax, including franchise fees or other charges, upon or in respect
of the right of the Company to operate, to use the public streets, alleys or thoroughfares,
or to do business within the jurisdiction imposing the charge.
4.SUPPLY AND USE OF SERVICE:
Service will be supplied only under and pursuant to these Rules, and anymodifications or additions thereto lawfully made, and under such applicable rate schedule
or schedules as may from time to time be lawfully fixed. Service will be supplied only to
those who secure their source of natural gas exclusively from the Company, unlessotherwise provided under appropriate contract. Service shall be used by the Customer
only for the purposes specified in the service agreement and applicable rate schedule or
schedules, and Customers shall not sell, or permit others to use such service, except
when expressly authorized to do so under appropriate contract.
IDAHO PUBLIC UTILITIES COMMISSION
Approved Effective
May 1, 2002 May 31, 2002
Jean D. Jewell Secretary
Issued June 2, 1999 Effective July 9, 1999
Issued by Avista Utilities
By , Manager, Rates & Tariff Administration
170-B
I.P.U.C. No. 27 Original Sheet 170-B
AVISTA CORPORATION
d/b/a Avista Utilities
IDAHO
RULES AND REGULATIONS - continued
5.DEFINITIONS:
5.1 Applicant:
Any potential customer who applies for service from the Company andeither has no previous service from the Company or has not had service with the
Company within the most recent sixty days.
5.2 Customer:
Any individual, partnership, corporation, association, governmental agency,political subdivision, municipality or other entity who has applied for, been
accepted, and is currently (1) receiving service, or (2) assuming responsibility for
payment of service provided to another or others.
If the person receiving service is not the same person as the personassuming responsibility for payment of service, the latter is the customer for
purposes of obtaining service, cancelling service, receiving refunds, etc.
Additionally, a person who moves within a the Company’s service territory and
requests that service be terminated at the customer’s previous location and servicebe initiated at a new location within sixty days is considered an existing Customer
and not an applicant.
5.3 Premises:
Each building, structure, dwelling or residence of the Customer. If theCustomer uses several buildings or structures in the operation of a single
integrated commercial, industrial, or institutional enterprise, the Company, on
request of the Customer, shall consider all such buildings or structures that are in
proximity to each other to be the premises, even though intervening ownerships orpublic thoroughfares exist. In such instances, the Customer shall own and beresponsible for the installation, operation, and maintenance of all natural gas
facilities on the Customer's side of the point of delivery to all structures constituting
such premises including the responsibility for obtaining the rights-of-way, permits,
governmental licenses or other approvals. Should the Company find that unduehardship could result from such a Customer owning natural gas facilities on the
Customer's side of the point of delivery, the Company may, pursuant to a rental
arrangement, provide, own, and maintain such facilities which will be comprised of
only regular inventory items of the Company. If it becomes necessary for theCompany to abandon any of its natural gas facilities due to several buildings orstructures becoming the premises, the Customer may be required to pay for the
investment in such facilities less net salvage.
IDAHO PUBLIC UTILITIES COMMISSION
APPROVED EFFECTIVE
July 6, 1999 July 9, 1999
Myrna J. Walters Secretary
Issued June 2, 1999 Effective July 9, 1999
Issued by Avista Utilities
By , Manager, Rates & Tariff Administration
170-C
I.P.U.C. No. 27 Original Sheet 170-C
AVISTA CORPORATION
d/b/a Avista Utilities
IDAHO
RULES AND REGULATIONS - continued
5.DEFINITIONS: - continued
5.4 Basis of Rates:The Company's rates are based upon, and are applicable to, the furnishing
of natural gas service to a Customer at a single point of delivery on his premises,
through a single meter installation, at a single pressure unless otherwisespecifically provided in the rate schedule or contract.
5.5 Natural Gas Service:Natural gas service is the availability of natural gas at the point of delivery
at the pressure and for the purpose specified in the service agreement, irrespective
of whether said natural gas is actually utilized by the Customer. The volume of gas
delivered will be measured in cubic feet and converted to therms in accordancewith Rule 5.13.
5.6 Point of Delivery:
The "point of delivery" shall be the "meter location" defined in Rule 8.
Service supplied to the same Customer at other points of delivery or premises, orat a different pressure shall be separately metered and billed as a separate rateapplication. The Company will not add, totalize, telemeter, or otherwise combine
the meter readings for separate and distinct premises for measuring natural gas
service or for the application of a rate schedule or schedules.
5.7 Therm:A "therm" is a unit of heating value equivalent to one hundred thousand
(100,000) British Thermal Units (BTU).
5.8 Standard Cubic Foot of Gas:
A "Standard Cubic Foot of Gas" shall be the amount of gas which, whensaturated with water vapor at a temperature of 60° Fahrenheit and subject to an
absolute pressure of 14.73 pounds per square inch occupies a volume of one cubic
foot.
5.9 Daily Average BTU:The "daily average BTU" shall be the average total heating value in BTUper standard cubic foot of gas supplied to customers each day.
5.10 Monthly Average BTU: (Billing Period)The "monthly average BTU" shall be the result (to the nearest whole
number) obtained by dividing the sum of the daily average BTU's for each day ofthe billing period by the number of days in such period.
IDAHO PUBLIC UTILITIES COMMISSION
APPROVED EFFECTIVE
July 6, 1999 July 9, 1999
Myrna J. Walters Secretary
Issued June 2, 1999 Effective July 9, 1999
Issued by Avista Utilities
By , Manager, Rates & Tariff Administration
170-D
I.P.U.C. No. 27 Original Sheet 170-D
AVISTA CORPORATION
d/b/a Avista Utilities
IDAHO
RULES AND REGULATIONS - continued
5.DEFINITIONS: - continued5.11 Metered Gas Pressure:The "metered gas pressure" shall be the pressure existing at the point of
metering.
5.12 Metered Volume of Gas:The "metered volume of gas" shall be defined as the amount of gas
delivered to the Customer as indicated on the Customer's meter at the metered
gas pressure.
5.13 Therms of Gas:The "therms of gas" supplied to a customer shall be the product of the
metered volume of gas converted to standard cubic feet of gas, multiplied by the
monthly average BTU, and divided by one hundred thousand (100,000).
6.APPLICATION AND AGREEMENT FOR SERVICE:
Each prospective Customer desiring natural gas service may be required tocomplete the Company's standard form of application for service or other form of
agreement before service is supplied by the Company.
An application for service shall be deemed to be a notice that the applicant desires
service from the Company as a Customer and represents his agreement to comply with
the Company's Rules and Regulations on file with the Commission and in effect at the time
service is furnished. In the absence of a signed application or agreement for service, thedelivery of natural gas service and the taking thereof by the Customer shall be deemed toconstitute an agreement by and between the Company and the Customer for the delivery
and acceptance of service under the applicable rate schedule or schedules and said Rules
and Regulations.
The Company will provide to its Customers at time of application for service and
thereafter such information relative to its rates, rules and regulations as may from time to
time be required by law or Commission rule and regulation.
All service shall be furnished under an agreement for a term of one year, at theoption of the Company, or longer when so provided in the applicable rate schedule. When
optional rate schedules are available, the Customer may not change from one rate
schedule to another more frequently than once in any 12-month period.
For service in large volumes or received under unusual circumstances, theCompany may require the Customer to execute a special written agreement.
IDAHO PUBLIC UTILITIES COMMISSION
APPROVED EFFECTIVE
July 6, 1999 July 9, 1999
Myrna J. Walters Secretary
IDAHO PUBLIC UTILITIES COMMISSION
Approved Effective
Oct. 19, 2004 Nov. 1, 2004
Jean D. Jewell Secretary
Issued November 10, 2000 Effective December 22, 2000
Issued by Avista Utilities
By , Manager, Rates & Tariff Administration
First Revision Sheet 170-E.1 170-E.1
CancellingI.P.U.C. No. 27 Original Sheet 170-E.1
AVISTA CORPORATION
d/b/a Avista Utilities
IDAHO
RULES AND REGULATIONS - continued
7.SERVICE PIPING AND METERS: - continued
7.3 For those residential customers where the Company is installing a new gas
service line or replacing an existing service, the Company will notify thosecustomers regarding the availability of an Excess Flow Valve (EFV). An EFV isdesigned to restrict the flow of natural gas should the service line be severed. The
charge to install an EFV shall be $77.50, which will be billed to the customer, for
installation on a new gas service line or a service line that is being replaced.
Residential customers with an existing gas service line who request installation ofan excess flow valve will be billed for actual labor and materials costs associated
with the installation. The Customer originally requesting installation of an EFV will
be responsible for any EFV repair or replacement costs that were not directlycaused by the Company or third-party. Installation of an excess flow valve will be
made available only to single-unit residential dwellings
8.SERVICE ENTRANCES AND CONNECTIONS:
"Meter Location" shall be the point at which gas shall be delivered to and received
by the applicant, shall be out-of-doors, if practicable, and shall be at a point designated bythe Company subject to the applicant's approval, provided that the length of service pipingshall not exceed, by more than ten feet, the shortest distance between the Company's
distribution main and the building to be served.
The Company, in accordance with Gas Extension Policies, Schedules 151 or 152,will furnish and install the service piping between its main and the meter location.
The Customer shall exercise proper care to protect the Company's property on hispremises; and in the event of loss or damage to the Company's property, arising from
neglect, carelessness or misuse by the Customer, hisemployees, servants, or agents, the cost of necessary repairs or replacements shall be
paid by the Customer.
9.ACCESS TO PREMISES:The Customer shall grant all necessary permission to enable the Company to
install and maintain the service on the premises of the Customer and to carry out itscontract. The Company shall have the right through its agents, or employees, to enter
upon the premises of the Customer at all reasonable times for the purpose of reading,
inspecting, repairing, or removing the metering devices and properties of the Company. Inthe event the Customer is not the owner of the premises occupied, he shall obtain such
permission from the owner as the Company may require.
IDAHO PUBLIC UTILITIES COMMISSION
APPROVED EFFECTIVE
Dec. 18, 2000 Dec. 22, 2000
Jean D. Jewell Secretary
Issued June 2, 1999 Effective July 9, 1999
Issued by Avista Utilities
By , Manager, Rates & Tariff Administration
170-F
I.P.U.C. No. 27 Original Sheet 170-F
AVISTA CORPORATION
d/b/a Avista Utilities
IDAHO
RULES AND REGULATIONS - continued
10.REFUSAL OF SERVICE:
Nothing in these rules shall be construed as placing upon the Company any
responsibility for the condition or maintenance of the Customer's piping, currentconsuming devices or other equipment, and the Company shall not be held liable for any
loss or damage resulting from defects in the Customer's installation and shall not be heldliable for damage to persons or property arising from the use of the service on the
premises of the Customer.
A.The Company may refuse to connect an applicant for service or may refuseto render additional service to a Customer when such service, including
compliance with these Rules and Regulations, will adversely affect service being
rendered to other Customers, or where the applicant or Customer has not complied
with state, county, or municipal codes or regulations concerning the rendition ofsuch service.B.The Company may refuse to serve an applicant or a Customer if, in its
judgment, said applicant's or Customer's installation or piping or gas-burning
equipment is hazardous.
C.The installation of proper protective devices on the applicant's orCustomer's premises may be required whenever the utility deems such installation
necessary to protect its property or that of its Customers.
D.The Company may not be required to provide service if, to do so, it wouldbe economically unfeasible.
E.See other denial grounds as listed in Utility Customer Relations Rules 302-303 and 602-604.
10.1 Notice of Service Refusal:
If the Company intends to deny service to an applicant, the Company shalldeliver to the applicant written notice of the Company's refusal to serve. The noticeshall state:
A.the reasons for denial of service;
B.actions the applicant may take in order to receive service; andC.that an informal or formal complaint concerning denial of service
may be filed with the Commission.
11.INCREASED USE:In order to prevent damage to the Company's equipment and impairment of itsservice, the Customer shall give the Company notice before making any additions to his
connected load so that the Company, at its option, may provide such facilities as may be
necessary for furnishing the increased service.
IDAHO PUBLIC UTILITIES COMMISSION
APPROVED EFFECTIVE
July 6, 1999 July 9, 1999
Myrna J. Walters Secretary
Third Revision Sheet 170-G
Canceling
I.P.U.C. No.27 Second Revision Sheet 170-G 170-G
AVISTA CORPORATION
d/b/a Avista Utilities
Issued March 23, 2020 March 24, 2020
IDAHO
RULES AND REGULATIONS - continued
12.PAYMENTS:
One bill will be rendered, for each monthly billing period, listing charges for
electricity, gas, or other charges, to a Customer receiving one or more of such services
from the Company at one premises.
Company employees collecting payment at the customer’s premises will not accept
cash. If the customer offers payment in cash during a field collection visit, discontinuance of
service will be postponed and the customer given the opportunity to either make payment at
a designated payment agency or provide an alternative form of payment acceptable to the
Company.
Monthly bills for services rendered and other charges are due and payable in full within
15 days from their date and if not so paid shall be in default. When a residential Customer
certifies in writing that payment by the ordinary due date creates a hardship due to the
particular date when the Customer receives funds, the due date shall be extended up to an
additional 15 days.
In the event the Customer tenders a payment of less than the full amount of the
monthly bill for services and/or other charges, the Company, unless otherwise directed by
the Customer when payment is made, will apply said payment pro rata first to the charges in
default and the remainder, if any, to the current monthly charges.
12.1 Returned Check Charge; Checks or payments remitted by Customers in
payment of bills are accepted conditionally. A charge of $20.00 will be assessed the
Customer for handling checks or payments upon which payment has been refused by
the bank.
12.2 Late Payment Charge; Payments not received by the next month’s bill date
will be considered late. A late payment charge may be applied to the delinquent amount
and will be computed at the rate of 12 percent per annum or one percent per month.
The late payment charge will not be applied to time-payment or equal payment
accounts that are current.
13.DEPOSITS:
See Utility Customer Relations Rules 100-109 and 601.
(Note: On April 20, 1999, an exception was granted to Rule 107.02, allowing the Company to
credit deposits which are no longer required, including accrued interest, directly to customer
accounts.)
IDAHO PUBLIC UTILITIES COMMISSION
Approved Effective
Mar. 24, 2020 Mar. 24, 2020
Diane M. Hanian Secretary

Issued July 26, 2004 Effective September 1, 2004

Issued by Avista Utilities
By Kelly Norwood, Vice President, State & Federal Regulation

170-G.1
Substitute First Revision Sheet 170-G.1
I.P.U.C. No. 27 Canceling Original Sheet 170-G.1
AVISTA CORPORATION
d/b/a Avista Utilities

IDAHO
RULES AND REGULATIONS - continued

14. DISCONTINUANCE OF SERVICE:
See Utility Customer Relations Rules 300-313 and 600-605.

14.1 Field Collection Charge:
A personal visit performed by a Company representative to a service
address subsequent to satisfying the provisions regarding Discontinuance of
Service shall be deemed a field collection visit. A $16.00 fee will be assessed for
visits that result in the collection of past-due balances from the Customer during
the visit. The fee will be waived if service is disconnected during the visit. The
Customer will receive one free visit on a 12-month rolling basis.

15. RECONNECTION CHARGE:
All applicable reconnection charges shall be paid before service is restored.
Customer payments may be made to authorized Company employees or at a designated
payment agency.

15.1 Reconnection Charge:
When service has been discontinued for failure of the Customer to comply
with the Company’s rules and regulations under this tariff including default
(nonpayment), a charge shall be made for reconnection. The charge for
reconnection shall be:

$24.00, provided satisfactory arrangements for payment of all proper
charges have been made during the hours of 8:00 a.m. through 4:00 p.m. Monday
through Friday, except holidays; or
$48.00 if such arrangements are made during the hours of 4:00 p.m.
through 7:00 p.m. Monday through Friday, except holidays.

If such arrangements are made during hours other than the above, the
reconnection shall be completed on the following day except for medical
emergencies or a customer disconnected in error. Any reconnection completed on
a weekend or holiday will be charged $48.00.

IDAHO PUBLIC UTILITIES COMMISSION
Approved Effective
August 30, 2004 Sept. 1, 2004
Jean D. Jewell Secretary
IDAHO PUBLIC UTILITIES COMMISSION
Approved Effective
Oct. 19, 2004 Nov. 1, 2004
Jean D. Jewell Secretary
Issued November 10, 2000 Effective December 22, 2000
Issued by Avista Utilities
By , Manager, Rates & Tariff Administration
First Revision Sheet 170-H 170-H
CancellingI.P.U.C. No. 27 Original Sheet 170-H
AVISTA CORPORATION
d/b/a Avista Utilities
IDAHO
RULES AND REGULATIONS - continued
16.PERSONALIZED BILLING PLANS:
Personalized Billing Plans for payment of bills for gas service (and electric service
where applicable) are available to Customers who want level payments. The PersonalizedBilling Plans are offered to Customers without regard to time of year, home/businessownership or how long they have been at current residence or place of business.
16.1 Comfort-Level Billing Plan (CLB):
A Customer with an unpaid balance may join the Comfort-Level Billing Plan.
Any unpaid balance will typically be paid off through a payment plan. Uponcompletion of that payment plan, the customer will begin their Comfort-Level Billing
Plan.
The CLB plan will be based upon previous use, or estimated future use,
and will approximate a monthly average of the Customer's estimated annualbillings. Actual annual charges will differ. The "Base Plan Amount" will be billed on
the regular statement each month. The amount shall apply only to the premisesoccupied by the Customer.
A Customer will remain on the CLB plan until the: (1) Customer requestsremoval from the plan, (2) Customer moves from their premises, (3) Customer failsto pay the billed amounts for two (2) or more
(remainder of page intentionally left blank)
IDAHO PUBLIC UTILITIES COMMISSION
APPROVED EFFECTIVE
Dec. 18, 2000 Dec. 22, 2000
Jean D. Jewell Secretary
Issued June 2, 1999 Effective July 9, 1999
Issued by Avista Utilities
By , Manager, Rates & Tariff Administration
170-I
I.P.U.C. No. 27 Original Sheet 170-I
AVISTA CORPORATION
d/b/a Avista Utilities
IDAHO
RULES AND REGULATIONS - continued
16.PERSONALIZED BILLING PLANS: - continued
months, or (4) Company notifies the Customer of the termination of the CLB Plan.
In the case of non-payment, the Customer may remain on the CLB Plan if the
customer pays the delinquent amount. Upon termination, any amount owed by theCustomer for actual charges shall immediately become due and any amount owed
to the Customer shall be refunded. The Company will not pay interest on any
credit balance and will not charge the Customer interest on any debit balance inthe Customer's CLB account.
The Company will review each Customer's CLB account on a regular basis.At the time of the review, the Company will recalculate the Customer's Base Plan
Amount by using the most recent twelve months of consumption history. If the
"recalculated" Base Plan Amount differs, by 25% or more from the "previous" Base
Plan Amount, the customer will be given the choice of either discontinuing the CLBPlan or continuing the CLB Plan with the recalculated amount. Under normal
circumstances, the company will not change the amount more than twice in any
twelve (12) month period.
A review will be completed at the twelfth month anniversary of the date theCustomer began their CLB plan. If the Customer's recalculated Base Plan Amountdiffers by 10% or more from the previous Base Plan Amount, the customer will be
given the choice of either continuing or discontinuing their CLB Plan. If the
Customer chooses to continue their CLB Plan, their new monthly payments will be
their recalculated Base Plan Amount. This recalculated Base Plan Amount will bebased on previous usage or estimated future usage. A Customer's Base Plan
Amount may decrease, increase, or remain the same. Customers with a debit
balance will be given the opportunity to either pay off their balance or have itincluded in their CLB payments. If the customers elect to have their debit balance
included in their monthly payments, their monthly payments will equal their BasePlan Amount plus 1/12th of their debit balance. Customers with credit balances
will have the overpayment applied to their next statement(s). At the customer's
request, any credit balance will be refunded in full.
17.INTERRUPTION OF SERVICE:The Company shall make all reasonable efforts to avoid interruption of service,
and, when such interruptions occur, to re-establish service with a minimum of delay. In
case the supply of service shall be interrupted or irregular or defective or fail from causes
beyond its control or through ordinary negligence of employees, servants, or agents, theCompany will not be liable therefore.
IDAHO PUBLIC UTILITIES COMMISSION
APPROVED EFFECTIVE
July 6, 1999 July 9, 1999
Myrna J. Walters Secretary
Issued June 2, 1999 Effective July 9, 1999
Issued by Avista Utilities
By , Manager, Rates & Tariff Administration
170-J
I.P.U.C. No. 27 Original Sheet 170-J
AVISTA CORPORATION
d/b/a Avista Utilities
IDAHO
RULES AND REGULATIONS - continued
17.INTERRUPTION OF SERVICE: - continuedWhen it is necessary for the Company to make repairs to or change its facilities,the Company may, without incurring any liability therefore, suspend service for such
periods as may be reasonably necessary, and in such manner as to minimize the
inconvenience to Customer, provided, that, when practicable, such suspension shall be
during working hours regularly maintained by the Company. Police and Fire Departmentsaffected by such suspension shall be individually notified thereof and when practicable all
other customers shall be given notification, through newspaper, radio announcements or
other means, a reasonable time in advance.
18.MINIMUM HEATING VALUE OF GAS:
Minimum heating value of gas supplied to a Customer shall not be less than 950
BTU's per standard cubic foot of gas.
19.DELIVERY OF PRESSURE:
Gas service under this tariff normally will be supplied and maintained at the point ofdelivery at a pressure as close as practicable to 0.25 p.s.i.g. or seven inches of water
column.
Where the volume of gas supplied or the Customer's utilization thereof requires
pressure in excess of 0.25 p.s.i.g., on request of the Customer the Company maydesignate a higher pressure and supply gas service at such pressure.
20.BILLS - CONTENTS OF, ERRORS IN, FINAL, AND TRANSFER OF:
See Utility Customer Relations Rules 200-206.
21.COMPLAINT PROCEDURES:
See Utility Customer Relations Rules 401-403.
22.INFORMATION REQUIRED TO BE AVAILABLE TO CUSTOMERS:
See Utility Customer Relations Rule 701 and Utility Customer Information Rules
101-105.
23.METER READING AND BILLING PRACTICE:
1.The normal monthly billing period shall be approximately 30 days betweenmeter readings as scheduled by the Company. However, Saturdays, Sundays, holidays,or some other unusual situation may alter the normal billing period. In such situations,
natural gas service covering 27 to 35 days inclusive will be billed as a normal billing
period.
2.The Company reserves the right to modify meter reading schedules asrequired by changing conditions.
IDAHO PUBLIC UTILITIES COMMISSION
APPROVED EFFECTIVE
July 6, 1999 July 9, 1999
Myrna J. Walters Secretary
First RevisionSheet 170-K
Canceling
I.P.U.C.No.27 Original Sheet 170-K
AVISTA CORPORATION
d/bla Avista Utilities
IDAHO
RULES AND REGULATIONS-continued
23.METER READINGAND BILLING PRACTICE:-continued
3.When other than normal billing periods are caused by the Customer;i.e.,
opening an account,services for six days or less will be treated as an addition to the next
normal billing period,and the total billed on the basis of a normal billing period;
consumptions for seven days or more will be billed as a normal billing period,i.e.,closing
an account,services for 27 to 35 days will be billed as a normal billing period.The
billings for services less than 27 and more than 35 days will be prorated.
4.When other than normal billing periods are caused by the Company,due to
modification of meter reading schedules as required by changing conditions,services
will be billed on a normal billing period basis,or prorated,whichever produces the
smaller bill.
5.The Company may estimate meter readings for fractional month's use and
render bills based on these estimated readings.
6.Where the Company's meter reader is unable to gain access to the
premises to read the meter on his regular meter trip,the Company may estimate meter
readings or request the Customer to send in the meter reading on a post card furnished
by the Company.
7.See UtilityCustomer Relations Rule 204.
24.METER ACCURACY
The Company shall ensure that customers receive service with adequate pressure,
heat content,and accurate measurement of gas consumption.No meter that is
mechanically defective shall be placed in service or allowed to remain in service after a
defect has been discovered.
A new gas meter installed for the use of any customer shall not be more than one (1)
percent slow and not more than one (1)percent fast.Any meter removed from service for
testing or repair shall be adjusted to the tolerance prescribed by the Avista Utilities Gas
Standards Manual prior to being reinstalled.
Issued September 18,2018 Effective November1,2018
Issued by Avista Utilities
By Patrick Ehrbar,Directorof RegulatoryAffairs
IDAHO PUBLIC UTILITIES COMMISSION
Approved Effective
Oct. 31, 2018 Nov. 1, 2018
Per O.N. 34178
Diane M. Hanian Secretary
I.P.U.C.No.27 Original Sheet 170-L
AVISTA CORPORATION
d/b/a Avista Utilities
IDAHO
RULES AND REGULATIONS-continued
25.METER TESTING
A.Reporting.After December 31st of each year,results of the installed meter testing program will besummarized,analyzed,and made available at the request of the Commission.
B.Meter Records.
Meter history records shall be maintained until superseded by a later test,but not lessthantwoyears.These records shall give:
1.sufficient information to identify the meter,
2.the reason for the test,
3.the date of the test and reading of the meter,
4.the name of the person making the test,and
5.the accuracy as found and as left,togetherwith enough of the data taken atthetimeofthetesttopermittheconvenientcheckingofthemethodsemployedandthecalculations.
C.Testing of Meters.
All tests to determine the accuracy of registrations of gas service meters shall be madewithasuitablemeterproverortestingequipment.
1.New Meter Testing Program.
a.New meters shall be factory tested and certified to meet
accuracy criteria as specified herein.
b.Acceptance testing shall be performed by the Company prior to
installation of new meters per the Avista Utilities Gas Standards
Manual.
2.Installed Meters Testing Program,
a.Installed meters shall be inspected and tested against meteringtoleranceprescribedhereinandpertheAvistaUtilitiesGas
Standards Manual.
b.Meters found to be outside the prescribed tolerances shall be
immediately adjusted or replaced.No meter shall be reinstalled iffoundtobemorethantwo(2)percent slow or fast when tested at the
prescribed rate(s)of flow.
Issued September 18,2018 Effective November1,2018
Issued by Avista Utilities
By Patrick Ehrbar,Directorof RegulatoryAffairs
IDAHO PUBLIC UTILITIES COMMISSION
Approved Effective
Oct. 31, 2018 Nov. 1, 2018
Per O.N. 34178
Diane M. Hanian Secretary
I.P.U.C.No.27 Original Sheet 170-M
AVISTA CORPORATIONd/bla Avista Utilities
IDAHO
RULES AND REGULATIONS-continued
c.The methodologyfor sample sizes and analysis for the installedmetertestingprogramisderivedfromtheAmericanNationalStandardsInstitute(ANSI)/American Society for Quality (ASQ)Standard Z1.9 (Standard Z1.9)and other generallyacceptedinspectionstandards.
i.For diaphragm meters 1000 CFH and smaller,a randomsampleofmetersshallbeselected,tested within aprescribedsamplesize,and analysis conducted usingStandardZ1.9.The random sampling program shallbeginduringthe10*year after meter installation,asestablishedbylastsetdate.
ii.Larger capacity meters shall be tested per the Avista UtilitiesGasStandardsManual.
D.Meter Tests Requested by CustomersTheCompanywill,without charge,test the accuracy of registration of a meter uponrequestofaCustomer,provided that the Customer does not request such a test morefrequentlythanonceina12-month period.
If a Customer requests more than one meter test within any 12-month period,theCompanyshallinformtheCustomer,prior to the test,that if the meter is found toregisterwithinthe2percentacceptedtolerancestandard,under normal operatingconditions,the Customer shall be required to pay the actual cost to perform the metertest.
No billing adjustment shall be required if the test results show an average registrationerroroflessthan2percent.
26.MAPS AND RECORDS OF FACILITIES
Maps and records shall be kept on file or availableelectronically in the principalofficeofeachdivisionordistrict.The maps shall show the size,character,andlocationofeachstreetmain,district regulator,street valve,and when practicable,each service connection in the corresponding territory served.In lieu of showingthedateofinstallationandservicelocationonmaps,a separate record may bemaintained.
Issued September 18,2018 Effective November 1,2018
Issued by Avista UtilitiesBy Patrick Ehrbar,Directorof RegulatoryAffairs
IDAHO PUBLIC UTILITIES COMMISSION
Approved Effective
Oct. 31, 2018 Nov. 1, 2018
Per O.N. 34178
Diane M. Hanian Secretary
I.P.U.C.No.27 OriginalSheet 170-N
AVISTA CORPORATION
d/bla Avista Utilities
Each division or district office shall maintain records of the gas distribution systemthatwillenabletheCompanytofurnishinformationregardingtheprovisionofservicetoApplicantsandCustomers.
The Commission may inspect facilities and records as necessary as provided insection61-521,Idaho Code.
Issued September18,2018 Effective November 1,2018
Issued by Avista Utilities
By Patrick Ehrbar,Director of RegulatoryAffairs
IDAHO PUBLIC UTILITIES COMMISSION
Approved Effective
Oct. 31, 2018 Nov. 1, 2018
Per O.N. 34178
Diane M. Hanian Secretary

AVISTA CORPORATION
dba Avista Utilities
Issued July 31, 2023 Effective November 1, 2023

Issued by Avista Corporation
By Patrick Ehrbar, Director of Regulatory Affairs

SCHEDULE 175
FIXED COST ADJUSTMENT MECHANISM – NATURAL GAS

PURPOSE:

This Schedule establishes balancing accounts and implements an annual Fixed
Cost Adjustment (“FCA”) rate mechanism that separates the recovery of the
Company’s Commission authorized revenues from therm sales to customers
served under the applicable natural gas service schedules.

TERM:

The term of the FCA mechanism will remain in effect through March 31, 2025.

APPLICABLE:

To Customers in the State of Idaho where the Company has natural gas service
available. This schedule shall be applicable to all retail customers taking service
under Schedules 101, 111, and 112. This Schedule does not apply to Schedules
131/132 (Interruptible Service), Schedule 146 (Transportation Service For
Customer-Owned Gas) or Schedule 148 (Special Contracts). Applicable
Customers will be segregated into two (2) distinct Rate Groups:

Group 1 – Schedule 101
Group 2 – Schedules 111 and 112

Note – the recovery of incremental revenue related to fixed production and
underground storage costs will be excluded for new natural gas customers added
after the FCA Base test year.

MONTHLY RATE:

Group 1 – ($0.01219) per therm
Group 2 – ($0.00632) per therm

Seventh Revision Sheet 175
Canceling
I.P.U.C. No. 27 Sixth Revision Sheet 175

IDAHO PUBLIC UTILITIES COMMISSIONApproved EffectiveOct. 27, 2023 Nov. 1, 2023 Per ON 35969 Jan Noriyuki Secretary
First Revision Sheet 175A
Canceling
I PUC No.27 Original Sheet 175A
AVISTA CORPORATION
dba Avista Utilities
SCHEDULE 175A
FIXED COST ADJUSTMENTMECHANISM -NATURAL GAS (continued)
DESCRIPTIONOF THE NATURAL GAS FCA MECHANISM:
Calculation of MonthlyAllowed Delivery RevenuePer Customer:
Steo 1 -Determine the Total Delivery Revenue -The Total Delivery Revenue
is equal to the final approved base rate revenue (excluding natural gas costs)
approved in the Company's last general rate case,individually for each Rate
Schedule.For new customers,determine the Fixed Production and
Underground Storage Revenue by multiplying the Normalized Therms by rate
schedule from the last approved general rate case by the sum of the average
Production and Underground Storage Cost per Therm by rate schedule from
the approved Cost of Service.
Sten 2 -Remove Basic Charge Revenue -included in the Delivery Revenue
is revenue recovered from customers in Basic and Minimum charges ("Fixed
Charges").Because the FCA mechanism only tracks revenue that varies with
customer energy usage,the revenue from Fixed Charges is removed.The
number of Customer Bills in the test period,multiplied by the applicable Fixed
Charges determines the total Fixed Charge revenue by rate schedule.
Step 3 -Determine Allowed FCA Revenue -Allowed FCA Revenue is equal
to the Delivery Revenue (Step 1)minus the Basic Charge Revenue (Step 2).
For new customers,Allowed FCA Revenue is equal to the Delivery Revenue
minus the Fixed Production and Underground Storage Revenue (Step 1)minus
the Basic Charge Revenue (Step 2).
Step 4 -Determine the Allowed FCA Revenue per Customer -To determine
the annual per customer Allowed FCA Revenue,divide the Allowed FCA
Revenue (by Rate Group)by the Rate Year number of Customers (by Rate
Group)to determine the annual Allowed FCA Revenue per Customer (by Rate
Group).
Steo 5 -Determine the Monthly Allowed FCA Revenue per Customer -to
determine the monthly Allowed FCA Revenue per customer,the annual
Allowed FCA Revenue per customer is shaped based on the monthly therm
usage from the rate year.The mechanism uses the resulting monthly
percentage of usage by month and multiplied that by the annual Allowed FCA
Revenue per Customer to determine the 12 monthly values
Issued June 30,2017 Effective November 1,2017
issued by Avista Corporation
By Kelly Norwood,Vice President,State &Federal Regulation
IDAHO PUBLIC UTILITIES COMMISSION
Approved Effective
Oct. 24, 2017 Nov. 1, 2017
Per O.N. 33919
Diane M. Hanian Secretary
First Revision Sheet 175B
Canceling
P U.C.No.27 Original Sheet 175B
AVISTA CORPORATION
dba Avista Utilities
SCHEDULE 175B
FIXED COST ADJUSTMENTMECHANISM -NATURAL GAS (continued)
Calculation of MonthlyFCA Deferral;
Step 1 -Determine the actual number of customers each month (see Note
1 below).
Sten 2 -Multiplythe actual numberof customers by the applicable monthly
Allowed FCA Revenue per Customer.The result of this calculation is the
total Allowed FCA Revenuefor the applicable month.
Step 3 -Determine the actual revenue collected in the applicable month.
For new customers only,also multiply actual therm sales by the approved
Fixed Production and Underground Storage Cost per Therm to determine
actual revenue collected related to fixed production and underground
storage costs.
Steo 4 -Calculate the amount of fixed charge revenues included in total
actual monthly revenues.
Steo 5 -Subtract the basic charge revenue (Step 4)from the total actual
monthly revenue (Step 3).For new customers,subtract the basic charge
revenue (Step 4)and the fixed production and underground storage
revenue (Step 3)from the total actual monthlyrevenue (Step 3).The result
is the Actual FCA Revenue.
Steo 6 -The difference between the Actual FCA Revenue(Step 5)and the
Allowed FCA Revenue (Step 2)is calculated,and the resulting balance is
deferred by the Company.Interest on the deferred balance will accrue at
the Customer Deposit Rate.
Issued June 30,2017 Effective November1,2017
ssued by Avista Corporation
3y Kelly Norwood,Vice President,State &Federal Regulation
IDAHO PUBLIC UTILITIES COMMISSION
Approved Effective
Oct. 24, 2017 Nov. 1, 2017
Per O.N. 33919
Diane M. Hanian Secretary
First Revision Sheet 175C
Canceling
I.P.U.C.No.27 Original Sheet 175C
AVISTA CORPORATION
dba Avista Utilities
SCHEDULE 175C
FIXED COST ADJUSTMENTMECHANISM --NATURAL GAS (continued)
ANNUAL NATURAL GAS FCA RATE ADJUSTMENT:
On or before July 1st each year,the Company will file a request with the
Commission to surcharge or rebate,by Rate Group,the amount accumulated in the
deferred revenue accounts for the prior January through December time period.
The proposed tariff revisions included with that filing would include a rate
adjustment that recovers/rebates the appropriate deferred revenue amount over a
twelve-month period effective on November 1st.The deferred revenue amount
approved for recovery or rebate would be transferred to a balancing account and the
revenue surcharged or rebated during the period would reduce the deferred revenue
in the balancing account.Any deferred revenue remaining in the balancing account at
the end of the calendar year would be added to the new revenue deferrals to determine
the amount of the proposed surcharge/rebate for the following year.
After determining the amount of deferred revenue that can be recovered
through a surcharge (or refunded through a rebate)by Rate Group,the proposed rates
under this Schedule will be determined by dividing the deferred revenue to be
recovered by Rate Group by the estimated therm sales for each Rate Group during
the twelve month recovery period.The deferred revenue amount to be recovered will
be transferred to a FCA Balancing Account and the actual revenue received under this
Schedule will be applied to the Account to reduce (amortize)the balance.Interest will
be accrued on the unamortized balance in the FCA Balancing Account at the Customer
Deposit Rate.
3%ANNUAL RATE INCREASELIMITATION:
The amount of the incremental proposed rate adjustment under this Schedule
cannot reflect more than a 3%rate increase.This will be determined by dividing the
incremental annual revenue to be collected (proposed surcharge revenue less present
surcharge revenue)under this Schedule by the total "normalized"revenue for the two
Rate Groups for the most recent January through December time period.Normalized
revenue is determined by multiplying the weather-corrected usage for the period by
the present rates in effect.If the incremental amount of the proposed surcharge
exceeds 3%,onlya 3%incremental rate increase will be proposed and any remaining
deferred revenue will be carried over to the following year.There is no limit to the
level of the FCA rebate,and the reversal of any rebate rate would not be included in
the 3%incremental surcharge test.
Issued June 30,2017 Effective November 1,2017
ssued by Avista Corporation
By Kelly Norwood,Vice President,State &FederalRegulation
IDAHO PUBLIC UTILITIES COMMISSION
Approved Effective
Oct. 24, 2017 Nov. 1, 2017
Per O.N. 33919
Diane M. Hanian Secretary

I.P.U.C. No.27 Original Sheet 176

AVISTA CORPORATION
d/b/a Avista Utilities
Issued September 1, 2021 Effective September 1, 2021

Issued by Avista Corporation
By Patrick Ehrbar, Director of Regulatory Affairs

SCHEDULE 176

TAX CUSTOMER CREDIT - IDAHO

APPLICABLE:
To Customers in the State of Idaho where the Company has natural
gas service available. This Temporary Federal Income Tax Rate Credit shall be applicable
to all retail customers taking service under Schedules 101, 111, 112, 131, 132 and 146.

This rate credit is designed to reflect the benefits attributable to a change in accounting for
federal income tax expense from the normalization method to the flow-through method for
certain “non-protected” plant basis adjustments.

MONTHLY RATE:
The energy charges of the individual rate schedules are to be decreased by the following
amounts:

Schedule 101 $0.01567 per Therm
Schedule 111 & 112 $0.00811 per Therm
Schedule 131 & 132 $0.00811 per Therm
Schedule 146 $0.00365 per Therm

TERM:
The Tax Customer Credit will be in effect for a ten-year period from September 1, 2021
through August 31, 2031. Any residual balance at the end of the ten-year term will be
recovered in a future rate proceeding.

SPECIAL TERMS AND CONDITIONS:
Service under this schedule is subject to the Rules and Regulations contained in this tariff.

The above Rate is subject to increases as set forth in Tax Adjustment Schedule 158.
IDAHO PUBLIC UTILITIES COMMISSION
Approved Effective
Sept. 7, 2021 Sept. 1, 2021
Per O.N. 35156
Jan Noriyuki Secretary
I.P.U.C.No.27 OriginalSheet 185
AVISTA CORPORATIONd/bla Avista Utilities
SCHEDULE 185
IDAHO SERVICE QUALITYPROGRAM
PURPOSE:
This Schedule provides general terms and conditions for the Company's IdahoServiceQualityProgram.The purpose of this program is to monitor and measureAvista's customer service performance.The results of the program will be reportedannuallytotheIdahoPublicUtilitiesCommissionandtheCompany's gas customers.
Customer Service Measures
1.The level of Customer satisfaction with telephone service,as provided by theCompany's Contact Center,will be at least 90 percent,where:
a.The measure of Customer satisfaction is based on Customers who respondtoAvista's quarterly survey of Customer satisfaction,known as the "Voice oftheCustomer",as conducted by its independentsurvey contractor;
b.The measure of satisfaction is based on Customers participating in thesurveywhoreporttheleveloftheirsatisfactionaseither"satisfied"or "very
satisfied";and
c.The measure of satisfaction is based on the statistically-significant surveyresultsforbothelectricandnaturalgasserviceforAvista's entire serviceterritory(Idaho,Oregon,and Washington)for the calendar year.
2.The level of Customer satisfaction with the Company's field services will be at least90percent,where:
a.The measure of Customer satisfaction is based on Customers who respondtoAvista's quarterlysurvey of Customer satisfaction,known as the "Voice oftheCustomer",as conducted by its independentsurvey contractor;
b.The measure of satisfaction is based on Customers participating in thesurveywhoreporttheleveloftheirsatisfactionaseither"satisfied"or "very
satisfied";and
c.The measure of satisfaction is based on the statistically-significant surveyresultsforbothelectricandnaturalgasserviceforAvista's entire serviceterritory(Idaho,Oregon,and Washington)for the calendar year.
3.The percentage of customer calls answered by a live representative within 60secondswillbeatleast80percentforthecalendaryear,where:
a.The measure of response time is based on results from the Company's ContactCenter,and is initiated when the customer requests to speak to a customerservicerepresentative;and
b.Response time is based on the combined results for both electric and naturalgascustomersforAvista's entire service territory (Idaho,Oregon,andWashington).
Issued October 5,2018 Effective November1,2018
Issued by Avista Utilities
Patrick Ehrbar,Directorof RegulatoryAffairs
IDAHO PUBLIC UTILITIES COMMISSION
Approved Effective
Oct. 31, 2018 Nov. 1, 2018
Per O.N. 34181
Diane M. Hanian Secretary
f.P.U.C.No.27 OriginalSheet 185A
AVISTA CORPORATIONd/bla Avista Utilities
SCHEDULE 185A
IDAHO SERVICE QUALITYPROGRAM (continued)
4.The Company's average response time to a natural gas system emergency inIdahowillnotexceed55minutesforthecalendaryear,where:
a.Response time is measured from the time of the customer call to the arrival of
a field service technician;and
b.A "natural gas system emergency"is defined as an event involving a naturalgasexplosionorfire,a fire in the vicinity of natural gas facilities,police/firedepartments,leaks identifiedin the field as "Grade 1",high or low gaspressureproblemsidentifiedbyalarmsorcustomercalls,natural gas systememergencyalarms,or calls regarding carbon monoxide,natural gas odor,runaway furnace,or delayed ignition.
Customer Service Guarantees
Keeoing Appointments
1.The Company will keep mutually agreed upon appointments regarding natural gasservice,scheduled in the time windows of either 8:00 a.m.--12:00 p.m.or 12:00p.m.-5:00 p.m.,except for the following instances:
a.The Customer or Applicant cancels the appointment;
b.The Customer or Applicant fails to keep the appointment;or
c.The Company reschedules the appointment with at least 24 hours'notice.
Connectinq Gas Service
2.The Company will connect gas service on the same day the Customer or Applicantrequestsservice,except for the following instances:
a.The service request is received by the Company after 7:00pm onweekdays,or on a weekend or holiday;
b.The Customer requests an alternativefuture date for service connection;
c.The Customer or Applicant is not availableat the time of connection;
d.Construction is required before the service can be connected;
e.The Customer or Applicant does not provide evidence that all requiredgovernmentinspectionshavebeensatisfied;
f.Required payments to the Company have not been received;
g.The service was disconnected for nonpayment or theft/diversionof service;
h.Gas service cannot be connected due to an outage;
i.Electric service is not connected prior to connecting gas service;j.When applicable,water service is not connected prior to connecting gasservice;or
k.An action or event that is outside the control of the Company prevents theCompanyfromconnectingservice.
Issued October5,2018 Effective November1,2018
Issued by Avista Utilities
Patrick Ehrbar,Directorof Regulatory Affairs
IDAHO PUBLIC UTILITIES COMMISSION
Approved Effective
Oct. 31, 2018 Nov. 1, 2018
Per O.N. 34181
Diane M. Hanian Secretary
I.P.U.C.No.27 Original Sheet 185B
AVISTA CORPORATIONd/bla Avista Utilities
SCHEDULE 185B
IDAHO SERVICE QUALITY PROGRAM (continued)
Providinq Cost Estimates
3.The Company will provide a cost estimate to the Customer or Applicantfor newnaturalgassupplywithin10businessdaysuponreceiptofallthenecessaryinformationfromtheCustomerorApplicant.
Responding to Bill Inquiries
4.The Company will respond to most billing inquiries at the time of the initial contact.For those inquires that require further investigation,the company will investigateandrespondtotheCustomerwithin10businessdays.
Resolvinq Meter Problems
5.The Company will investigate Customer-reported problems with a meter and/orconductametertestandreporttheresultstotheCustomerwithin20businessdaysfromthedateofthereportorrequest.
Issued October5,2018 Effective November1,2018
Issued by Avista Utilities
Patrick Ehrbar,Director of Regulatory Affairs
IDAHO PUBLIC UTILITIES COMMISSION
Approved Effective
Oct. 31, 2018 Nov. 1, 2018
Per O.N. 34181
Diane M. Hanian Secretary
l.P.U.C.No.27 Original Sheet 185C
AVISTA CORPORATIONd/bla Avista Utilities
SCHEDULE 185C
IDAHO SERVICE QUALITY PROGRAM (continued)
CUSTOMER SERVICE GUARANTEECREDITS
For failure to meet a Customer Service Guarantee for service provided to a gas Customer,the Company will apply a $50 credit to the Customer's account.For failure to meet aCustomerServiceGuaranteeforserviceprovidedtoanApplicant,the Company will mail acheckfor$50 to the Applicant.Avista will provide the qualifyingcredit or check without anyrequirementonthepartoftheCustomerorApplicanttoeitherapplyfororrequesttheapplicablecreditorcheck.All costs associated with the payment of Customer ServiceGuaranteesarepaidbyAvista's shareholders,not by customers.
Tracking of the Company's performance on the Customer Service Guarantees,includingtheapplicationofcustomercredits,will begin on January 1,2019.
ANNUAL REPORT
The Company will include the results of its Customer Service Measures and CustomerServiceGuaranteesforgascustomersinanannualreporttobefiledwiththeIdahoPublicUtilitiesCommissiononorbeforeApril30"'of each year.
CUSTOMER REPORT CARD
Within 90 days of filing its Annual Customer Service Quality &Electric System ReliabilityReport,the Company will send a Service Quality Report Card to its Customers,which willincludethefollowing:
a.Results for each of the Company's Customer Service Measures,compared with
the respective performance benchmarks;
b.Report on the Company's Electric System Reliability;
c.Results for each of the Customer Service Guarantees,compared with therespectivebenchmarks,and including the number of events for each measure
where a credit was provided,and the total dollar amount of the credits paid for
each measure;and
d.Performance highlights for the year.
The Company will issue its first Report Card to customers on or before July 31,2020.
Issued October 5,2018 Effective November1,2018
Issued by Avista Utilities
Patrick Ehrbar,Directorof RegulatoryAffairs
IDAHO PUBLIC UTILITIES COMMISSION
Approved Effective
Oct. 31, 2018 Nov. 1, 2018
Per O.N. 34181
Diane M. Hanian Secretary
AVISTA CORPORATION
dba Avista Utilities
1.
SCHEDULE 190
NATUML GAS EFFICIENCY PROGRAMS
IDAHO
AVAILABILITY
The services described herein are available to qualifying residential, commercial,
and industrial, retail natural gas distribution customers of Avista Corporation for the
purpose of promoting the efficient use of natural gas. Customers receiving natural
gas distribution service provided under special contract and/or customers receiving
natural gas services not specified under Tariff Schedule 191 (Natural Gas Efficiency
Rider Adjustment) are not eligible for services contained in this schedule unless
specifically stated in such contract or other service agreement. The Company may
provide partial funding for the installation of natural gas efficiency measures and may
provide other services to customers for the purpose of identification and
implementation of cost effective natural gas efficiency measures as described in this
schedule. Facilities-based services are available to owners of facilities, and also
may be provided to tenants who have obtained appropriate owner consent.
Assistance provided under this schedule is limited to end uses where natural gas
is or would be the energy source and to measures which increase the efficient use of
natural gas. Assistance may take the form of monetary incentives or non-monetary
incentives, as further defined within this tariff. The acquisition of resources is cost-
effective as defined by a Utility Cost Test (UCT) as a portfolio. Customer
participation under this schedule shall be based on eligibility requirements contained
herein.
ELIGIBLE CUSTOMER SEGMENTS
All customers in all customer segments to whom this tariff is available are eligible
for participation in natural gas efficiency programs developed in compliance with this
tariff.
MEASURES
Only natural gas efficiency measures with verifiable energy savings are eligible for
assistance. Measure eligibility may not necessarily apply to all customer segments.
Final determination of applicable measures will be made by the Company.
2.
3.
ive January 1, 2016
lssued by
By
Third Revision Sheet 190
Canceling
Second Revision Sheet 190
Avista Corporation
Kelly Nonrood, Vice-President, State and Federal Regulation
IDAHO PUBLIC UTILITIES COMMISSION
Approved Effective
Dec. 24, 2015 Jan. 1, 2016
Per O.N. 33444
Jean D. Jewell Secretary
IDAHO PUBLIC UTILITIES COMMISSION
Approved Effective
July 16, 2019 August 1, 2019
Diane M. Hanian Secretary
IDAHO PUBLIC UTILITIES COMMISSION
Approved Effective
Dec. 24, 2015 Jan. 1, 2016
Per O.N. 33444
Jean D. Jewell Secretary
IDAHO PUBLIC UTILITIES COMMISSION
Approved Effective
Feb. 26, 2008 March 3, 2008
Jean D. Jewell Secretary
l.P.U.C. No.27
lssued by
By
Ninth Revision Sheet 191
Canceling
Revision Sheet 191
AVISTA CORPORATION
d/b/a Avista Utilities
SCHEDULE 191
ENERGY EFFICIENCY RIDER ADJUSTMENT - IDAHO
APPLICABLE:
To Customers in the State of ldaho where the Company has natural gas
service available. This Energy Efficiency Rider or Rate Adjustment shall be
applicable to all retail customers taking service under Schedules 101, 111, 112,
131, and 132. This Rate Adjustment, is designed to recover costs incurred by the
Company associated with providing energy efficiency services and programs to
customers. The Company may, at its discretion to match revenue under this
schedule with demand for services under Schedule 190, reduce or increase this
charge on an annual basis. Any change in this charge is subject to Commission
approval and its review of the previous year expenditures under Schedule 190 and
determinations with regard to any revenue carry forward, and prospective budget
on an annual basis. Any annual expenditures exceeding annual collections when
combined with any carry forward budget surplus shall be at the Company's risk of
future recovery.
MONTHLY RATE:
The energy charges of the individual rate schedules are to be increased by
the following amounts:
Schedule 101
Schedule 111 & 112
Schedule 131 & 132
$0.04903 per Therm
$0.02626 per Therm
$0.02626 per Therm
SPECIAL TERMS AND CONDITIONS:
Service under this schedule is subject to the Rules and Regulations
contained in this tariff.
The above Rate is subject to increases as set forth in Tax Adjustment
Schedule 158.
lssued
September 2,2022 November 1,2022
Effective
Avista Utilities
Patrick Ehrbar - Director of Regulatory Affairs
IDAHO PUBLIC UTILITIES COMMISSION
Approved Effective
Nov. 1, 2022 Nov. 1, 2022
Per ON 35575
Jan Noriyuki Secretary

Issued by Avista Corporation

By Patrick Ehrbar, Director of Regulatory Affairs

I.P.U.C No. 28 Original Sheet 195

195
AVISTA CORPORATION
d/b/a Avista Utilities
Issued: September 2, 2022 Effective: September 2, 2022

SCHEDULE 195

OPTIONAL RENEWABLE NATURAL GAS – IDAHO

AVAILABLE:
To Customers in the State of Idaho where the Company has natural gas service. Customers
may participate in one or more available Renewable Natural Gas program options.

APPLICABLE:
To all customers receiving natural gas service who agree to participate in a program option
under this schedule.

PROGRAM OPTIONS AND CHARGES:
Low carbon energy program options available to customers will utilize the available types
of Renewable natural gas. The initial program option available will be as follows:

Renewable Natural Gas - One (1) block includes the environmental equivalent
attributes associated with 1.5 therms of renewable natural gas. Each block is priced
at $5.00 per block, per month.

All program charges are included in the price of the block and shall be in addition to all
other charges contained in the customer’s applicable tariff schedule.

MONTHLY BILLING:
Renewable Natural Gas - The monthly billing shall be reflective of the number of Renewable
Natural Gas block(s) the customer has agreed to purchase multiplied by the Charge per
Block. The Monthly Billing is in addition to all other charges contained in customer’s
applicable tariff schedule.

This schedule’s Monthly Billing shall be applied to the customer’s billing regardless of actual
energy consumption.
IDAHO PUBLIC UTILITIES COMMISSION
Approved Effective
Sept. 20, 2022 Sept. 2, 2022
Jan Noriyuki Secretary

I.P.U.C No. 28 Original Sheet 195 – A

Issued by Avista Corporation

By Patrick Ehrbar, Director of Regulatory Affairs

195-A
AVISTA CORPORATION
d/b/a Avista Utilities
Issued: September 2, 2022 Effective: September 2, 2022

SCHEDULE 195 – Continued

RENEWABLE NATURAL GAS:
For the purpose of this schedule, the blocks will include the environmental attributes
unbundled from the actual fuel associated with Renewable Natural Gas consisting largely of
methane and other hydrocarbons derived from the decomposition of organic material in
landfills, wastewater treatment facilities, and anaerobic digesters.

The renewable natural gas sourced shall be recognized via the M-RETs tracking system.

PROGRAM ADMINISTRATION:
To ensure that all costs and benefits of this program are only applied to program
participants, all funds collected and spent under this schedule will be separately identified
and tracked. Funds may include program costs (e.g.: program management, accounting,
communications, etc.) as well as to match block subscriptions to Renewable Natural Gas
environmental attribute purchases.

SPECIAL TERMS AND CONDITIONS:
1. Service under this schedule is subject to the Rules and Regulations contained in this
tariff.
2. Customers may apply for, or terminate participation from, this schedule anytime
during the year.
3. Program may be temporarily closed or ‘sold-out’ to new program subscribers if
there is insufficient renewable natural gas inventory available.
4. The above Monthly Billing is subject to increases as set forth in Tax Adjustment
Schedule 158.

IDAHO PUBLIC UTILITIES COMMISSION
Approved Effective
Sept. 20, 2022 Sept. 2, 2022
Jan Noriyuki Secretary