40 CFR 84.104: Prohibitions.

(a) Sale of recovered refrigerant. No person may sell, distribute, or transfer to a new owner, or offer for sale, distribution, or transfer to a new owner, any regulated substance used as a refrigerant in stationary refrigerant-containing equipment consisting in whole or in part of recovered regulated substances, unless the recovered regulated substance:

(1) Has been reclaimed by a person who has been certified as a reclaimer under 40 CFR 82.164 and has been reclaimed by being reprocessed to all of the specifications in appendix A to 40 CFR part 82, subpart F that are applicable to that regulated substance and verified to meet these specifications using the analytical methodology prescribed in section 5 of appendix A to 40 CFR part 82, subpart F; or

(2) Is sold, distributed, or transferred to a new owner, or offered for sale, distribution, or transfer to a new owner solely for the purposes of being reclaimed or destroyed.

(b) [Reserved]