Embodied Carbon
Assembly Bill(s) 2446 and 43 (Holden), signed by Governor Newsom, require the California Air Resources Board to develop a framework for measuring and then reducing the average carbon intensity of the materials used in the construction of new buildings, including those for residential uses. This includes developing a comprehensive strategy for the state’s building sector to achieve a 40% net GHG reduction, no later than 2035.
More about this program
Submit Comments to the October 30, 2025 Reporting Technical Meeting
CARB Embodied Carbon staff appreciate written public comments relating to our October 30, 2025 Embodied Carbon Reporting Technical Meeting.
Materials from that meeting are available on the Technical Meeting Materials page of the CARB Embodied Carbon website.
This comment docket is currently open and will close at 11:59 p.m. PST on Monday, December 8, 2025. Please note that submitted comments and attached materials will be posted publicly.
