https://www.epa.gov/section608/managing-refrigeration-and-ac-equipment
FWIW.
Best wishes,
Scott.
Section 608 (40 CFR Part 82, Subpart F) of the Clean Air Act establishes the National Recycling and Emission Reduction Program. It prohibits individuals from intentionally venting ozone-depleting substances (ODS) refrigerants and their substitutes, such as hydrofluorocarbons (HFCs) while maintaining, servicing, repairing, or disposing of air conditioning or refrigeration equipment.
FWIW.
Best wishes,
Scott.