Boston’s Building Emissions Reduction and Disclosure Ordinance (BERDO) sets requirements for large buildings to reduce their greenhouse gas emissions. The goal is to reduce emissions gradually to net zero by 2050.
Buildings account for nearly 70% of greenhouse gas emissions in Boston. The 2021 amendment to BERDO gives the City authority to set emissions standards for large existing buildings. The emissions standards will decrease over time, with all buildings achieving net zero emissions by 2050. To learn more, read the full text of the legislation.