Trade Programs
EPA 608 Certification: Types I, II, III & Universal (2026)
A practical guide to EPA Section 608 — the federally-mandated refrigerant handling certification — covering Type I, II, III, and Universal in plain language: what each Type lets you legally work on, the 18-of-25 pass mark, why open-book Type I can't count toward Universal, where to test (including from home), what it costs, and why it does not expire.