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Department of Ecology
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Clean Fuel Standard program documents

This page houses reports and data related to the Washington Clean Fuel Standard. To find guidance documents, user guides, and forms and templates to support program participation, please see our Program Documents page.

Monthly Credit Transaction Reports

These reports contain the volume of credits traded and the average credit price. We will post the most recent monthly report after the previous month's transactions. This report contains historical data in the excel file along with the most recent month's summarized data.

Quarterly Data Summary

These reports provide an overview of the volumes and types of fuels participating in the program. It also includes the number of deficits and credits generated by fuels, based on quarterly data submitted by registered parties. After each quarter, we will post a summary of the data. The Excel file of the latest quarter of data contains all data from past quarters.

Annual Cost Estimates

WAC 173-424-710(5) previously required the Department of Ecology to estimate the average cost or cost savings per gallon of gasoline or diesel and the total greenhouse gas emissions reductions attributable to the Clean Fuel Standard each year. This rule was amended in October 2025 and this requirement was removed, as it was duplicative of a preexisting annual Legislative report.

Utility Spending Reports

Electric utilities participating in the CFS receive credits for residential EV charging in their service territories, and are required by RCW 70A.535.080 to invest their revenue from the sale of these credits into transportation electrification. WAC 173-424-710(6) requires the Department of Ecology to post the spending reports it receives from electric utilities related to residential EV charging credits.  

So far, five participating electric utilities have sold credits, and one has invested revenue.

2023-2024 Investment Summary

Utility

Credits earned

Credits sold

Revenue

Revenue invested 

Avista Utilities

27,322

 15,880

 $243,230

 $243,230

Chelan County PUD #1

8,903

0

$-  

 $-  

Clark Public Utilities

73,851

1,000

$25,000

 $-

Cowlitz County PUD #1

7,571

0

$-  

 $-  

Douglas County PUD #1

3,088

0

$-  

 $-  

Franklin County PUD #1

1,529

0

$-  

 $-  

Jefferson County PUD #1

4,458

0

$-  

 $-  

Klickitat County PUD #1

597

597

$14,925

 $-

Lewis County PUD #1

1,137

0

$-  

 $-  

Mason County PUD #1

3,626

0

$-  

 $-  

Okanogan County Electric Co-op

786

0

$-  

 $-  

Orcas Power & Light

4,488

0

$-  

 $-  

Pacific County PUD #2

890

0

$-  

 $-  

PacifiCorp

2,863

0

$-  

 $-  

Peninsula Light Company

10,180

0

$-  

 $-  

Puget Sound Energy

634,675

0

$-  

 $-  

Seattle City Light

301,859

0

$-  

 $-  

Skamania County PUD #1

353

353

$8,825

 $-

Snohomish County PUD #1

188,060

0

$-  

 $-  

Tacoma Power

46,605

0

$-  

 $-  

Wahkiakum County PUD #1

127

127

$3,175

 $-

What utilities invested in

During the 2023–2024 period, Avista Utilities partnered with local community organizations—including Meals on Wheels and The Council of Aging & Human Services  —to support clean transportation projects.

  • Electric vehicles
  • Charging infrastructure
  • Related support services

These projects helped meet clean transportation goals while directly serving community needs.

Avista

Chelan PUD

Clallam County PUD

Clark PUD

Cowlitz County PUD

Douglas County PUD

Franklin County PUD

Jefferson PUD

Klickitat PUD

Lewis County PUD 

Mason PUD #3

Okanogan County PUD

Orcas Power and Light Coop

Pacific PUD

PacifiCorp

Peninsula Light Company

Puget Sound Energy

Seattle City Light

Skamania County PUD

Snohomish County PUD

Tacoma Power

Wahkiakum County PUD

Documents

 File NameFile SizeDescriptionCategoryDate Added
CFSCreditTransferActivityReport_July2023.xlsx 37.1 KB
Monthly Credit Trans... 09/14/23 11:18 AM
CFSCreditTransferActivityReport_August2023.xlsx 39 KB
Monthly Credit Trans... 09/14/23 11:19 AM
CFSCreditTransferActivityReport_September2023.xlsx 37.5 KB
Monthly Credit Trans... 10/05/23 12:58 PM
CFSCreditTransferActivityReport_October 2023.xlsx 37.8 KB
Monthly Credit Trans... 11/14/23 09:26 AM
CFSCreditTransferActivityReport_November2023.xlsx 46.4 KB
Monthly Credit Trans... 12/07/23 08:39 AM
CFSCreditTransferActivityReport_December2023.xlsx 46.6 KB
Monthly Credit Trans... 01/08/24 11:55 AM
CFSquarterlysummary_Q22023 TABLE format.xlsx 40.7 KB
#NEW_CATEGORY# 01/09/24 08:55 AM
CFSCreditTransferActivityReport_January2024.xlsx 46.4 KB
Monthly Credit Trans... 02/07/24 03:38 PM
CFSCreditTransferActivityReport_February2024.xlsx 52.7 KB
Monthly Credit Trans... 03/07/24 05:00 PM
CFSquarterlysummary_Q32023.xlsx 41.5 KB
None 03/29/24 08:32 AM
CFSCreditTransferActivityReport_March2024.xlsx 53.6 KB
Monthly Credit Trans... 04/08/24 05:14 PM
CFSCreditTransferActivityReport_April2024.xlsx 55.8 KB
Monthly Credit Trans... 05/13/24 04:54 PM
CFSCreditTransferActivityReport_May2024.xlsx 55.4 KB
Monthly Credit Trans... 06/11/24 05:04 PM
CFSquarterlysummary_Q42023.xlsx 44.1 KB
None 06/28/24 01:36 PM
CFSCreditTransferActivityReport_June2024.xlsx 26.5 KB
Monthly Credit Trans... 07/22/24 04:05 PM
CFSCreditTransferActivityReport_July2024.xlsx 27 KB
Monthly Credit Trans... 08/07/24 09:36 AM
CFSquarterlysummary_Q12024.xlsx 29.8 KB
None 09/12/24 03:48 PM
CFSCreditTransferActivityReport_August2024.xlsx 27.7 KB
Monthly Credit Trans... 09/16/24 11:34 AM
Quarter 1 2024 Data Summary Clean Fuel Standard.pdf 237.7 KB
None 09/27/24 11:41 AM
CFSCreditTransferActivityReport_September2024.xlsx 27.9 KB
Monthly Credit Trans... 10/01/24 10:44 AM
CFSCreditTransferActivityReport_October2024.xlsx 34.1 KB
Monthly Credit Trans... 11/15/24 09:59 AM
CFSquarterlysummary_Q22024.xlsx 23.2 KB
None 11/20/24 03:21 PM
CFSCreditTransferActivityReport_November2024.xlsx 34.4 KB
None 12/02/24 05:03 PM
CFSCreditTransferActivityReport_December2024.xlsx 35 KB
Monthly Credit Trans... 01/14/25 05:21 PM
CFSCreditTransferActivityReport_January2025.xlsx 36.1 KB
Monthly Credit Trans... 02/03/25 09:10 AM
CFSCreditTransferActivityReport_February2025.xlsx 36.9 KB
Monthly Credit Trans... 03/05/25 04:15 PM
CFSquarterlysummary_Q32024.xlsx 21.9 KB
None 03/10/25 10:31 AM
CFSCreditTransferActivityReport_March2025.xlsx 37 KB
Monthly Credit Trans... 04/03/25 03:05 PM
CFSquarterlysummary_Q42024.xlsx 25.1 KB
None 04/15/25 10:22 AM
CFSCreditTransferActivityReport_April2025.xlsx 38.6 KB
Monthly Credit Trans... 05/09/25 01:40 PM
CFSCreditTransferActivityReport_May2025.xlsx 37.9 KB
Monthly Credit Trans... 06/06/25 10:45 AM
CFSCreditTransferActivityReport_June2025.xlsx 38.1 KB
Monthly Credit Trans... 07/11/25 11:12 AM
CFSCreditTransferActivityReport_July2025.xlsx 40 KB
Monthly Credit Trans... 08/05/25 11:26 AM
CFSquarterlysummary_Q12025.xlsx 19.7 KB
None 08/07/25 04:36 PM
CFSCreditTransferActivityReport_August2025.xlsx 40.3 KB
Monthly Credit Trans... 09/11/25 11:57 AM
CFSCreditTransferActivityReport_September2025.xlsx 41.1 KB
Monthly Credit Trans... 10/14/25 08:51 AM
CFSquarterlysummary_Q22025.xlsx 20.5 KB
None 10/20/25 04:21 PM
Revised_CFSquarterlysummary_Q22025.xlsx 48.8 KB
None 10/29/25 04:27 PM
CFSCreditTransferActivityReport_October2025.xlsx 42 KB
Monthly Credit Trans... 11/05/25 03:35 PM
CFSCreditTransferActivityReport_November2025.xlsx 42.8 KB
Monthly Credit Trans... 12/08/25 08:53 AM
Avista 2024.xlsx 82.5 KB
Utility Spending Rep... 12/17/25 08:42 AM
Chelan PUD 2024.xlsx 67.8 KB
Utility Spending Rep... 12/17/25 08:42 AM
Clark PUD 2024.xlsx 67 KB
Utility Spending Rep... 12/17/25 08:43 AM
Cowlitz PUD 2024.xlsx 76.5 KB
Utility Spending Rep... 12/17/25 08:43 AM
Douglas County PUD 2024.xlsx 75.5 KB
Utility Spending Rep... 12/17/25 08:43 AM
Franklin County PUD 2024.xlsx 74.2 KB
Utility Spending Rep... 12/17/25 08:44 AM
Jefferson PUD 2024.xlsx 79.6 KB
Utility Spending Rep... 12/17/25 08:44 AM
Klickitat PUD 2024.xlsx 79.3 KB
Utility Spending Rep... 12/17/25 08:44 AM
Lewis PUD 2024.xlsx 74.3 KB
Utility Spending Rep... 12/17/25 08:44 AM
Mason PUD 3 2024.xlsx 75 KB
Utility Spending Rep... 12/17/25 08:45 AM
Okanogan PUD 2024.xlsx 66.1 KB
Utility Spending Rep... 12/17/25 08:45 AM
Orcas Power and Light 2024.xlsx 73.9 KB
Utility Spending Rep... 12/17/25 08:45 AM
Pacific PUD 2024.xlsx 73.5 KB
Utility Spending Rep... 12/17/25 08:46 AM
PacifiCorp 2024.xlsx 75.9 KB
Utility Spending Rep... 12/17/25 08:46 AM
Peninsula Light Co 2024.xlsx 73.6 KB
Utility Spending Rep... 12/17/25 08:46 AM
Puget Sound Energy 2024.xlsx 72.8 KB
Utility Spending Rep... 12/17/25 08:46 AM
Seattle City Light 2024.xlsx 68.9 KB
Utility Spending Rep... 12/17/25 08:47 AM
Skamania PUD 2024.xlsx 79.3 KB
Utility Spending Rep... 12/17/25 08:47 AM
Snohomish PUD 2024.xlsx 74.4 KB
Utility Spending Rep... 12/17/25 08:47 AM
Tacoma Power 2024.xlsx 74.2 KB
Utility Spending Rep... 12/17/25 08:47 AM
Wahkiakum PUD 2024.xlsx 78.6 KB
Utility Spending Rep... 12/17/25 08:48 AM
CFSCreditTransferActivityReport_December2025.xlsx 43.3 KB
Monthly Credit Trans... 01/28/26 12:14 PM
CFSCreditTransferActivityReport_January2026.xlsx 44.6 KB
Monthly Credit Trans... 02/19/26 01:04 PM
CFSquarterlysummary_Q32025.xlsx 57.7 KB
None 02/19/26 01:41 PM
CFSCreditTransferActivityReport_February2026.xlsx 46.5 KB
Monthly Credit Trans... 03/02/26 01:07 PM
CFSCreditTransferActivityReport_March2026.xlsx 48.3 KB
Monthly Credit Trans... 04/20/26 10:41 AM
CFSCreditTransferActivityReport_April2026.xlsx 50.2 KB
Monthly Credit Trans... 05/01/26 11:50 AM
CFSquarterlysummary_Q42025.xlsx 71.6 KB
None 05/20/26 08:41 AM
Avista 2025.xlsx 83.5 KB Utility Spending Report
Utility Spending Report
None 06/03/26 08:31 AM
Clallam County PUD 2025.xlsx 86.4 KB Utility Spending Report
Utility Spending Report
None 06/03/26 08:41 AM
Clark PUD 2025.xlsx 90.5 KB Utility Spending Report
Utility Spending Report
None 06/03/26 08:47 AM
Cowlitz PUD 2025.xlsx 76.4 KB Utility Spending Report
Utility Spending Report
None 06/03/26 08:47 AM
Douglas County PUD 2025.xlsx 88.1 KB Utility Spending Report
Utility Spending Report
None 06/03/26 08:49 AM
Franklin County PUD 2025.xlsx 74.2 KB Utility Spending Report
Utility Spending Report
None 06/03/26 08:50 AM
Jefferson PUD 2025.xlsx 86.8 KB Utility Spending Report
Utility Spending Report
None 06/03/26 08:51 AM
Klickitat PUD 2025.xlsx 72.7 KB Utility Spending Report
Utility Spending Report
None 06/03/26 08:51 AM
Lewis County PUD 2025.xlsx 69.6 KB Utility Spending Report
Utility Spending Report
None 06/03/26 08:53 AM
Mason PUD #3 2025.xlsx 86.5 KB Utility Spending Report
Utility Spending Report
None 06/03/26 08:54 AM
Okanogan County Electric Coop 2025.xlsx 87.1 KB Utility Spending Report
Utility Spending Report
None 06/03/26 08:55 AM
Orcas Power and Light Co 2025.xlsx 79.7 KB Utility Spending Report
Utility Spending Report
None 06/03/26 08:56 AM
PacifiCorp 2025.xlsx 81.3 KB Utility Spending Report
Utility Spending Report
None 06/03/26 08:57 AM
Puget Sound Energy 2025.xlsx 95.4 KB Utility Spending Report
Utility Spending Report
None 06/03/26 08:58 AM
Seattle City Light 2025.xlsx 82.2 KB Utility Spending Report
Utility Spending Report
None 06/03/26 08:59 AM
Skamania PUD 2025.xlsx 72.2 KB Utility Spending Report
Utility Spending Report
None 06/03/26 09:01 AM
Snohomish PUD 2025.xlsx 76 KB Utility Spending Report
Utility Spending Report
None 06/03/26 09:02 AM
Tacoma Power 2025.xlsx 76.7 KB Utility Spending Report
Utility Spending Report
None 06/03/26 09:04 AM
Wahkiakum PUD 2025.xlsx 71 KB Utility Spending Report
Utility Spending Report
None 06/03/26 09:05 AM
Pacific PUD 2025.xlsx 69.6 KB Utility Spending Report
Utility Spending Report
None 06/03/26 09:09 AM
CFSCreditTransferActivityReport_May2026.xlsx 52 KB
Monthly Credit Trans... 06/03/26 10:36 AM

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