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H 3522

An Act to establish a clean fuel standard

194th Legislature (2025-2026) Introduced by David Linsky

Massachusetts bill requiring fuel suppliers to reduce transportation fuel carbon intensity through a clean fuel standard with declining emissions targets over time.

Reporting date extended to Wednesday, December 3, 2025
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Bill Summary · H 3522

Legislative bill overview

H 3522 proposes establishing a clean fuel standard in Massachusetts that would require fuel suppliers to reduce the carbon intensity of transportation fuels sold in the state over time. The bill sets regulatory requirements and timelines for achieving measurable reductions in greenhouse gas emissions from the fuel supply, similar to programs in California and other jurisdictions.

Why is this important

Transportation fuels account for a significant portion of Massachusetts' greenhouse gas emissions, and a clean fuel standard directly targets this sector without requiring immediate vehicle replacement. The policy creates market incentives for cleaner fuel production and alternative fuels while potentially affecting fuel prices, refineries, and energy infrastructure across the state.

Potential points of contention

  • Economic impact on fuel costs: Compliance expenses could increase gasoline and diesel prices for consumers, with unclear magnitude and distributional effects on different income groups
  • Feasibility and technology readiness: Questions about whether clean fuel alternatives can scale sufficiently and whether suppliers can meet aggressive carbon reduction targets on the proposed timeline
  • Regional energy competitiveness: Concerns that stricter Massachusetts standards could disadvantage in-state refineries compared to out-of-state competitors or simply shift fuel sourcing rather than reducing overall carbon emissions

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

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