On December 30, 2020, New York State’s Department of Environmental Conservation (the “Department”) promulgated statewide ambient limits on greenhouse gas (“GHG”) emissions for the years 2030 and 2050 (the “Regulations”).[1]  The GHGs covered by the Regulations include carbon dioxide, methane, nitrous oxide and chlorofluorocarbons.[2]  The final Regulations constitute a critical step in the implementation of New York State’s climate strategy set out in the Climate Leadership and Community Protection Act (“CLCPA”).