The Colorado Department of Public Health and Environment (CDPHE) Air Pollution Control Division (the Division) adopted Regulation 22: Colorado Greenhouse Gas Reporting and Emission Reduction Requirements to the Air Quality Control Commission during its May 2020 meeting as part of its rulemaking process to implement Senate Bill 19-096, Senate Bill 19-181, House Bill 19-1261, and Senate Bill 19-236 for a potential greenhouse gas emissions reporting rule and potential greenhouse gas emission reduction strategies addressing hydrofluorocarbon (HFC) emissions. This regulation is intended to enact vacated portions of EPA’s SNAP Rules 20 and 21, prohibiting certain HFCs in aerosol propellants, chillers, foam, and stationary refrigeration end-uses.