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H 3406

An Act relative to responsibly reducing emissions in the transportation sector

194th Legislature (2025-2026) Introduced by James Arena-DeRosa and 20 co-sponsors

Massachusetts must buy only zero-emission battery-electric medium- and heavy-duty trucks for state fleets by 2035, with annual progress reports and a 2027 delay on California-based

Hearing scheduled for 07/22/2025 from 10:00 AM-01:00 PM in A-1
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WeVote Research Nonpartisan
Bill Summary · H 3406

Summary of H.3406: An Act relative to responsibly reducing emissions in the transportation sector

Overview

  • Introduced: February 27, 2025
  • Sponsor: Rep. Angelo J. Puppolo, Jr. (and others)
  • Committee: State Administration and Regulatory Oversight
  • Docket/Status: House Docket No. 811; Filed January 13, 2025; Hearing scheduled July 22, 2025, 10:00 AM–1:00 PM (Room A-1)
  • Related: HD 811 replaces prior proposals; Senate concurrence noted

Purpose and Intent

The bill seeks to accelerate Massachusetts’ transition of state vehicle fleets to zero-emission power, specifically targeting medium- and heavy-duty trucks used or leased by Commonwealth agencies. It aims to establish a clear timeline for phasing in zero-emission vehicles (ZEVs), while preserving a limited exception if zero-emission options do not meet functional or infrastructural needs. It also delays certain California-derived clean-truck regulations at the state level.

Key Provisions

Section 1 — Zero-emission medium- and heavy-duty trucks for Commonwealth purchases

  • Effective July 1, 2025: All Commonwealth purchases or leases of new medium- and heavy-duty trucks must be zero-emission vehicles (ZEVs), defined as battery electric medium- or heavy-duty trucks.
  • Fleet mandate: By June 30, 2035, the Commonwealth fleet (owned or leased) must be comprised of zero-emission medium- and heavy-duty trucks.
  • Exception for unmet needs: If no battery-electric option meets the Commonwealth’s needs or cannot be supported by existing charging infrastructure, the Secretary may purchase non-battery-electric medium- or heavy-duty trucks.
  • Annual reporting: The Secretary must file an annual progress report by July 1 with:
    • A complete listing of all medium- and heavy-duty trucks leased, owned, or assigned to each agency.
    • Detailed descriptions of each truck (year, make, model) and propulsion type (internal combustion, mild hybrid, plug-in hybrid, battery electric, hydrogen fuel cell, CNG, propane, etc.).
    • Explanations for any non-ZEV purchases, including why a ZEV could not fulfill the function.

Section 2 — Delaying Advanced Clean Trucks and Heavy-Duty Omnibus regulations

  • The Department of Environmental Protection (DEP) shall not implement or enforce the Advanced Clean Trucks and Heavy-Duty Omnibus regulations earlier than July 1, 2027.
  • These regulations reference California’s Low Emission Vehicle program; the bill postpones Massachusetts’ adoption/enforcement of those California-based provisions.

Section 3 — Effective date

  • The act takes effect immediately upon passage.

Implementation and Timeline

  • July 1, 2025: Start of mandatory ZEV purchases for new medium- and heavy-duty trucks.
  • On or before June 30, 2035: Commonwealth fleet must be fully zero-emission.
  • July 1 of each year: Required progress reports detailing fleet and propulsion characteristics.
  • July 1, 2027: Delay in implementing California-based Advanced Clean Trucks and Heavy-Duty Omnibus regulations.

Affected Parties and Scope

  • State agencies and departments responsible for vehicle fleets.
  • Commonwealth procurement authorities and fleet managers.
  • Department of Environmental Protection (implementation delay).
  • Vehicle manufacturers and vendors supplying medium- and heavy-duty trucks.

Reporting and Oversight

  • Annual, public-facing progress reports to clerks of the Senate and House and chairs of the transportation committees.
  • Detailed fleet inventory and propulsion descriptions, with justification for any non-ZEV purchases.

Legislative Status and Schedule

  • Hearing: July 22, 2025 (10:00 AM–1:00 PM), Room A-1.
  • Referred to committee: February 27, 2025 (State Administration and Regulatory Oversight).
  • House action: Filed as House No. 3406; Senate concurrence noted.

Notes

  • “Zero-emission vehicle” is defined in this bill specifically as battery-electric trucks.
  • If sufficient battery-electric options or charging infrastructure are not available, the Secretary has discretion to procure non-ZEV trucks, with explicit justification in annual reporting.

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

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