Recover/recycle equipment must be certified by an EPA approved independent standards testing organization, i.e. UL or ETL, to extract and recycle refrigerant from a motor vehicle air conditioner to a standard set forth by the Society of Automotive Engineers (SAE). The equipment standards were SAE J for CFC and SAE J for HFC‐134a. A motor vehicle air conditioning industry sponsored research project indicated that equipment designed to meet SAE standards J did not recover refrigerant from MVAC systems as well as was previously assumed. As much as 30% of refrigerant remained in an MVAC system when J recovery equipment indicated all
