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Bill

H 3726

An Act aligning the Commonwealth's transportation plans with its climate goals

194th Legislature (2025-2026) Introduced by Michelle Ciccolo and 16 co-sponsors

Massachusetts bill mandates transportation infrastructure planning align with state climate targets, requiring emissions reductions analysis for all major transportation projects and decisions.

Accompanied a study order, see H5132
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Bill Summary · H 3726

Legislative bill overview

H 3726 requires Massachusetts to integrate its transportation infrastructure and planning decisions with the state's legally binding climate commitments under the 2008 Global Warming Solutions Act. The bill would establish mechanisms to ensure new transportation projects and long-term plans actively reduce greenhouse gas emissions rather than remaining independent of climate targets.

Why is this important

Massachusetts has statutory climate goals requiring 50% emissions reductions by 2030 and net-zero by 2050, but transportation planning has historically operated separately from these targets. This bill addresses a genuine policy gap: transportation accounts for roughly one-third of state emissions, yet major highway expansions and transit decisions often proceed without explicit climate impact analysis or alignment with reduction goals.

Potential points of contention

  • Cost and feasibility: Aligning all transportation projects with strict climate metrics could increase project costs, delay construction timelines, or require scaling back planned road expansions that communities depend on
  • Regional equity concerns: Rural and suburban areas relying on car-dependent infrastructure may face disproportionate restrictions if climate alignment prioritizes public transit in urban centers
  • Implementation ambiguity: The bill's mechanisms for enforcing alignment aren't yet detailed; unclear how conflicts between transportation needs and climate targets will be resolved in practice

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

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