A refrigerated warehouse uses a commercial refrigeration system with 300 pounds of refrigerant. What annual leak rate threshold applies to commercial refrigeration under the current rules?
a.30 percent
b.50 percent
c.20 percent
d.10 percent
Explanation
Commercial refrigeration appliances have a leak rate threshold of 20 percent per year, higher than the 10 percent for comfort cooling but lower than the 30 percent for industrial process refrigeration. A 50 percent threshold does not exist under the rule. Once the calculated annual leak rate exceeds 20 percent, repairs must generally be completed within 30 days.
Law Reference: 40 CFR §82.157This 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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