Greenhouse Gas Emission Reporting

Local Law 97 of 2019, passed by the City Council as part of Mayor Bill de Blasio’s Green New Deal, is an unprecedented commitment to increase the sustainability of buildings, the single-largest source of greenhouse gas (GHG) emissions in New York City. The law became effective on November 15, 2019.

Local Law 97 will further the goal of achieving a 40 percent reduction in aggregate greenhouse gas emissions from covered buildings by calendar year 2030 and an 80 percent reduction in citywide emissions by calendar year 2050.

A covered building means, with some exceptions, (i) a building that exceeds 25,000 gross square feet, or (ii) two or more buildings on the same tax lot that together exceed 50,000 gross square feet, or (iii) two or more buildings held in the condominium form of ownership that are governed by the same board of managers and that together exceed 50,000 gross square feet.

Further details regarding emissions limits, as well as information on buildings that are exempt from Local Law 97 requirements can be found below. Local Law 97 of 2019 was amended by Local Law 147 of 2019. The amended version of these laws can be reviewed in §28-320 of the Administrative Code.