Participants in the Clean Fuel Standard program can find guidance documents, user guides, and forms and templates to support program participation. To stay informed when new documents are added, and for general program information, join our email list.

To see Quarterly Data Summaries and Monthly Credit Transaction Reports visit our Data and Reports Page.

Interested in joining the Clean Fuel Standard?

• Clean Fuel Standard’s Benefits for Owners of Electric Vehicle Charging Stations - Interested in the CFS? This document gives an overview of how owners of EV charging stations can join the program and earn credits as an extra source of revenue for your clean transportation investments.
• Opt-In to Earn Clean Fuel Standard Credits - An overview of ways to generate CFS credits, primarily for electric utilities interested in claiming credits for EV charging. 
• Clean Fuel Standard advance credits for Tribes - An overview of how Tribes and other public entities can opt-in to the CFS to get an advance on multiple years of credits for transportation electrification and hydrogen projects. Ecology expects to open the Advance Credit Program in July 2026, with applications accepted from July 1–31.

User Guides

Producers and suppliers of regulated fuels to Washington consumers must participate and register in the Washington Fuels Reporting System (WFRS) and Alternative Fuel Portal (AFP). Guidance on how to register accounts and fuel supply equipment, and how to apply for a fuel pathway.

• WFRS-CBTS User Guide – This user guide gives instructions about how to register for an account in Washington Fuels Reporting System - Credit Bank and Transfer System
• AFP User Guide – This user guide gives instructions about how to register for an account in the Alternative Fuel Portal
• Fuel Supply Equipment Registration User Guide -- This user guide gives instructions about how to register FSE in WFRS

 Forms

• WFRS-CBTS Administrator Designation Form – This form is part of the WFRS-CBTS registration process
• Aggregator Designation Form – This form approves designation of a third-party aggregator
• AFP Administrator Designation Form – This form authorizes an organization's account administrator for the alternative fuel portal. 
• AFP Attestation Letter – This form is required for all fuel pathway applications in the Alternative Fuel Portal
• Biomethane or Biogas Attestation Letter – This form is required for all Tier 1 fuel pathway applications involving biomethane or biogas in the Alternative Fuel Portal
• Temporary Fuel Pathway Request Form – This form is required for all temporary fuel pathway applications
• WFRS-CBTS Account Closure Form – This form should be used to close an existing WFRS-CBTS account

Templates

• Fuel Supply Equipment (FSE) Registration Template – This template is required for all FSE registrations
• Fuel Supply Equipment (FSE) Detail Sheet Template – This template is required for FSE registrations involving eCHE, eGSE, eOGV, eTRU, Forklifts, or EV Trucks (Yard Trucks)
• Clean Fuel Standard Obligation Calculator - This template allows participants to estimate credit/deficit amounts
• Marketable Crude Oil Name (MCON) Reporting Template - This template must be submitted by producers of gasoline or diesel fuel each quarter as an attachement to the CFS quarterly report in WFRS.
• Reporting Template for Residential EV Charging Credit Revenue - This template is for electric utilities to report revenue generated from residential EV charging credits.
• Reporting Template for Natural Gas Total Throughput - This template must be submitted as an attachment with quarterly reports that include natural gas.

Guidance documents, focus sheets, and other materials

• List of registered program participants - Updated semi-regularly to reflect newly registered participants.

• Participant Guidance: Documenting Exempt Fuels - How to report and document fuels that are exempt under the CFS
• Participation Guidance: Retiring Renewable Energy Certificates - How to retire Renewable Energy Certificates (RECs) for Clean Fuel Standard reporting
• M-RETS RTC Registration Guide for Washington ECY Clean Fuel Standard - Instructional guide for organizations looking to use the M-RETS® Renewable Thermal Tracking System (RTC). 
• Participation Guidance: Claiming Incremental Credits for Metered Residential EV Charging - Guidance on acceptable methods for collecting EV charging data, registration, and reporting to claim residential incremental credits. The following supplemental documents are needed to complete your reporting:
  • Residential Electricity Reporting Template 2025
  • Non-Residential EV Charging FSE Locations Updated: February 10, 2026
• Participation Guidance: Annual Fuel Pathway Report Requirements - Instructions on preparing annual fuel pathway reports (AFPR)
• Calculation for Residential EV Base Credits - Twice a year, Ecology calculates credits from at-home EV charging and allocates those credits to the participating electric utility that provided the electricity using the methodology outlined in this document.
• CFS Guidance on Residential EV Charging Credit Revenue Requirements - Guidance for electric utilities on residential EV charging revenue spending requirements.
• Clean Fuel Standard advance credits for Tribes - An overview of how Tribes and other public entities can opt-in to the CFS to get an advance on multiple years of credits for transportation electrification and hydrogen projects. Ecology expects to open the Advance Credit Program in July 2026, with applications accepted from July 1–31.

Capacity Credits

Understanding Capacity Credits

Light-/Medium-Duty Fast Charging Infrastructure (LMD-FCI) Documents

Application Materials and Instructions

• LMD-FCI Application Template - This template is required for all LMD-FCI pathway applicants
• LMD-FCI Cost and Revenue Reporting Template - Participants claiming LMD-FCI credits are required to submit this template each year as a supplemental document to their annual report in WFRS

Approved LMD-FCI Applications

As of August 19, 2025 there have been a total of 63 sites approved under the LMD-FCI provision, with a total of 201 chargers.

FCI Approved Sites (August 19, 2025)

LMD-FCI applications can be approved until estimated potential LMD-FCI credits from all approved applications exceed 2.5 percent of deficits in the prior quarter. The table below shows the prior quarter deficits and will be updated quarterly. The estimated potential LMD-FCI credits will be updated as applications are approved. 

Heavy-Duty Fast Charging Infrastructure (HD-FCI) Documents

Application Materials and Instructions

• HD-FCI Application Template - This template is required for all HD-FCI applicants
• HD-FCI Cost and Revenue Reporting Template - Participants claiming HD-FCI credits are required to submit this template each year as a supplemental document to their annual report in WFRS

Approved HD-FCI Applications

*This will be updated when applications are approved*

Heavy-Duty Hydrogen Refueling Infrastructure (HD-HRI) Documents

Application Materials and Instructions

• HD-HRI Application Template - This template is required for all HD-HRI applicants
• HD-HRI Cost and Revenue Reporting Template - Participants claiming HD-HRI credits are required to submit this template each year as a supplemental document to their annual report in WFRS

Approved HD-HRI Applications

*This will be updated when applications are approved*

HD-FCI and HD-HRI applications can be approved until the sum of estimated potential HD-FCI and HD-HRI (HD-ZEV) from all approved applications exceeds 2.5% of deficits in the prior quarter. The table below shows the prior quarter deficits and will be updated quarterly. The estimated potential HD-FCI and HD-HRI credits will be updated as applications are approved.

Guidance on Uploading Capacity Credit Applications to WFRS

FCI Approved DC Fast Charging Sites

(Updated August 19, 2025)

Electric Utility-Specific Carbon Intensity

Current

• 2026 Utility-Specific Carbon Intensity of Electricity - Draft 
• 2026 Utility carbon intensity calculator - based on 2024 Fuel Mix Disclosure report

Past

• 2025 Carbon Intensity Values for Electricity
• 2025 Utility carbon intensity calculator - based on 2023 Fuel Mix Disclosure report
• 2024 and Updated 2023 Carbon Intensity Values for Electric Utilities
• Final 2022 WA Utility CI Calculator - updated May 2024
• Updated 2021 WA Utility CI Calculator -  updated May 2024

Fuel Pathways

Fuel producers may submit fuel pathway applications to have the life cycle greenhouse gas emissions from their fuel's production and transport to Washington certified with a carbon intensity score.

• WA Approved Fuel Pathways - updated March 6, 2026
• WA Re-certified Fuel Pathways from CARB or OR-DEQ

To request ADA accommodation, call Ecology at 360-407-6831, 711 (relay service), or 877-833-6341 (TTY). Or request accommodation online.