Building Decarb. Legislation Tracker (Public)

In the 2025 legislative session, we tracked 130 bills and budget items promoting building decarbonization. Out of these 130 bills, 40 passed. Additional bills may pass this year, as 15 are still being considered across Massachusetts, New Jersey, and Pennsylvania. Illinois also has a special session that may see the passage of the energy omnibus bill.

This tracker is updated annually.