If your car’s AC has started blowing lukewarm air right as summer hits, your first instinct is probably to grab a can of refrigerant from the local shop. But before you head out, you might wonder: Is this legal? Do I need some kind of professional license to buy this stuff?
Under EPA Section 609 , there is a specific exception for DIY enthusiasts. You can walk into almost any auto parts store and buy of R134a—defined as containers holding two pounds or less —without showing any certification.
While the small cans are fair game, the EPA tightens the leash on anything larger. You to purchase:
These cans are designed specifically for Motor Vehicle Air Conditioners (MVAC) and must now come equipped with to prevent accidental leaks into the atmosphere. When You Actually Need a License
If you’re looking for R22 or R410A for a home AC unit, you’ll need Section 608 certification regardless of the container size. 2026 and the Road Ahead