In the United States, , you generally need an EPA Section 608 certification to legally purchase R22 refrigerant . Federal law restricts the sale of ozone-depleting substances like R22 to certified technicians to ensure they are handled safely and responsibly. Key Legal Requirements

: While Section 609 certification exists for automotive technicians, it does not allow the purchase of R22 for home HVAC systems.

: Most major HVAC supply houses and specialized retailers will not sell R22 directly to unlicensed consumers.

: Even if a homeowner finds a way to obtain R22, it is illegal for anyone without an EPA certification to install or add it to an air conditioning system.

: Many systems can be converted to use newer, more available refrigerants like R-407C or R-421A.

: This is the standard license required for purchasing R22 intended for stationary systems like home air conditioners.

: As of January 1, 2020, R22 can no longer be manufactured or imported in the U.S.. All current sales must come from recycled, recovered, or reclaimed stock.