NRDC Report, US States Take the Lead in HFC Phasedown Pathway: Non-Carbon Dioxide Climate Pollutants → Fluorinated Gases → Regulatory Approaches to Reducing Fluorinated GasesJurisdiction: Executive BranchJurisdiction: States and State Governments NRDC’s 2019 report summarizes federal efforts to phase out HFCs, their shortcomings, and state efforts to fill the gap.