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Comment period

Proposed Temporary Fuel Pathway Application

Clean Fuel Standard

Nov. 2, 2023 - Dec. 17, 2023, 11:59 p.m.

Comment on an application for a new temporary fuel pathway and carbon intensity value under the Clean Fuel Standard. 

We may approve a new temporary pathway for a fuel or feedstock fuel combination (WAC 173-424-610(11)) not found in Table 8 of     WAC 173-424-900.

Montana Renewables, LLC has requested that Ecology add temporary fuel pathways and carbon intensity (CI) values for renewable naphtha. 

Documents for review

Public comments on proposed new temporary fuel pathway will be accepted for 45 days prior to certification. If relevant comments received during this period require significant revisions of the originally published pathway, an updated pathway will be posted for additional public comment. Upon certification, this new temporary pathway will be available for WFRS-CBTS reporting for the quarter in which it is certified.


The Clean Fuel Standard will curb carbon pollution from transportation, which is the largest source of statewide greenhouse gas emissions in Washington. The Clean Fuel Standard is designed to decrease the carbon intensity of Washington's transportation fuels. It will provide an increasing range of low-carbon and renewable alternatives, which reduce dependency on petroleum and improve air quality.

As of Jan. 1, 2023, producers and suppliers of high-carbon intensity fuels must register, report, and meet the requirements of the Clean Fuel Standard program. Producers and suppliers of low-carbon intensity fuels may opt in and meet the requirements to generate credits.

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Comment online

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Comment by mail

Debebe Dererie
Washington Department of Ecology
P.O. Box 47612
Olympia, WA 98504-7612
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Debebe Dererie
Clean Fuel Standard Fuel Pathway Specialist

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