New Proposed Local Law 97 Regulations Include Key Offset, Adjustment, And Cogeneration Provisions

On September 27, 2024, the New York City Department of Buildings (DOB) issued its third proposed rulemaking package to implement Local Law 97 of 2019 (LL97). LL97 requires most large buildings in NYC to meet increasingly stringent greenhouse gas (GHG) emissions limits starting in 2024. The proposed regulations establish a new GHG emissions offset program tied to building electrification in New York City affordable housing developments, open the application period for two types of adjustments to building emissions limits, and create a GHG emissions coefficient for cogeneration facilities, among other provisions. DOB is accepting public comments on the proposed rules through November 7 and will hold a public hearing online that morning.