The federal government regulates the sale of Class 1 and Class 2 refrigerants, including products commonly known as Freon R-12 and Freon R-22. These products may not be lawfully sold unless the buyer is properly certified by an Environmental Protection Agency ("EPA") approved testing program. The law puts the burden on the seller of these products to ensure that the buyer is properly certified, and a seller's failure to abide by the regulations can result in criminal penalties.
While Freon and other regulated refrigerants may be listed on Details.at, sellers must state in their item description that they will comply with all applicable laws and ensure that the high bidder is properly certified. The seller must require their bidders to provide proof of EPA certification. Bidding alone is not proof of certification.