New York City Building Emissions Law

Local Law 97 of 2019 as amended (LL97) is one of the most ambitious plans for reducing emissions in the nation. Under this groundbreaking law, most buildings over 25,000 square feet are required to meet new GHG emissions limits beginning in 2024, with stricter limits coming into effect in 2030. The goal is to reduce the emissions produced by the City’s largest buildings 40 percent by 2030 and to net zero by 2050.