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H 3649

An Act limiting autonomous driving capabilities to zero emission and electric vehicles

194th Legislature (2025-2026) Introduced by Mike Day

Massachusetts bill restricts autonomous vehicle deployment to zero-emission and electric vehicles only, linking self-driving technology advancement to environmental standards.

Accompanied a study order, see H4775
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Bill Summary · H 3649

Legislative bill overview

H 3649 restricts autonomous vehicle (self-driving car) technology in Massachusetts to only zero-emission and electric vehicles, effectively banning autonomous systems on gas-powered cars. The bill appears designed to link autonomous driving advancement with environmental sustainability goals by limiting the technology to cleaner vehicle types.

Why is this important

This would significantly narrow the Massachusetts market for autonomous vehicles during a critical development period for the technology. It could affect major manufacturers' willingness to test or deploy autonomous systems in the state and may create competitive disadvantages for Massachusetts-based autonomous vehicle companies unless they focus exclusively on electric platforms.

Potential points of contention

  • Technology development impact: Restricting autonomous testing to only electric vehicles may slow innovation and real-world data collection, as this eliminates a large portion of the vehicle fleet from autonomous pilot programs
  • Economic and manufacturing considerations: Vehicle manufacturers may choose to test autonomous systems in states without this restriction, potentially redirecting research investment and jobs away from Massachusetts
  • Enforceability questions: The bill's practical enforcement mechanism is unclear—how regulators would verify compliance and whether retrofitting or grandfather clauses would apply to existing autonomous systems

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

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