A technician who services rooftop package units charged with R-410A (a high-pressure refrigerant) needs which certification type at minimum?
a.No certification, because HFCs have zero ODP
b.Type II
c.Type I
d.Type III
Explanation
Type II certification is required to service or dispose of high-pressure and very high-pressure appliances, which includes R-410A rooftop units. Type I covers only small appliances, Type III covers low-pressure systems, and certification is required for HFCs even though they have zero ODP. A Universal certification would also qualify because it includes Type II.
Law Reference: 40 CFR §82.161This topic, taught in full in the EPA Section 608 Certification guide. EPA 608 Universal Study Guide (2026) — Core + Type I/II/III, with the 2027 A2L update — PDF + EPUB, $14.99 · 14-day refund →
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