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Bill

SB 6269

Modernizing the definition of motor fuel in the motor fuel quality act.

2025-2026 Regular Session Introduced by Marko Liias and 1 co-sponsor

SB 6269 expands Washington's legal motor fuel definition to include modern alternative fuels and blends, modernizing regulations for evolving transportation fuel markets.

Passed final passage; yeas, 49; nays, 0; absent, 0; excused, 0.
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Bill Summary · SB 6269

Legislative bill overview

SB 6269 updates Washington's Motor Fuel Quality Act to modernize the legal definition of what qualifies as "motor fuel," likely to accommodate alternative fuels and fuel blends that have become more common since the original legislation was written. The bill has progressed through the House Environment & Energy Committee with a "do pass" recommendation and is now scheduled for second reading consideration.

Why is this important

As transportation fuels evolve—including increased use of biofuels, hydrogen, synthetic fuels, and higher ethanol blends—outdated legal definitions can create regulatory uncertainty for fuel producers and retailers while potentially hindering the transition to cleaner energy sources. Modernizing these definitions ensures the state's fuel quality standards remain relevant and supportive of current market conditions and climate goals.

Potential points of contention

  • Fuel compatibility concerns: Updates to fuel definitions may raise questions about whether new fuel types meet existing engine compatibility standards and whether consumers need education about proper fuel selection
  • Industry impact variability: Fuel producers and refiners may face different compliance costs depending on how broadly the new definition is written, potentially favoring some market participants over others
  • Environmental trade-offs: While alternative fuels may have lower emissions, the bill's specific provisions could affect fuel efficiency, supply chain logistics, or agricultural impacts that stakeholders may dispute

Compiled from official sources — confirm details with the bill’s official record.

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