An Act to expand carbon pricing in the commonwealth

This bill establishes a phased carbon pricing system for major emissions sectors in Massachusetts, requiring market-based mechanisms (like fees or emissions trading) to meet statewide climate goals. It mandates carbon pricing starting in 2028 for commercial/industrial heating, 2029 for industrial processes, 2030 for transportation, and 2031 for residential heating, with prices beginning at $50 per metric ton of CO2 equivalent and increasing by $10 annually to a $200 cap. Proceeds from transportation fees must fund rebates for residents/employers and the Commonwealth Transportation Fund, while other sector fees support specific trust funds for climate action. The bill requires annual reporting on emissions reductions and ensures pricing mechanisms prioritize equity, protect low-income communities, and prevent increases in harmful air pollutants.