EPA 608 Plan

EPA 608 practice question: Core

CoreDifficulty 2/5

Since 1 January 2018, the venting prohibition in 40 CFR 82.154 has applied to refrigerant released while servicing which appliances?

  1. AThose containing any class I or class II refrigerant or a non-exempt substitute
  2. BThose containing a class I refrigerant that has not yet been fully phased out
  3. CThose containing a class I or class II refrigerant but no substitute refrigerant
  4. DThose containing more than fifty pounds of any refrigerant covered by the rule
Show answer and rationale

Correct: A. The 2018 expansion is the single most commonly missed Core fact. Section 82.154(a)(1) reaches any class I or class II refrigerant and any non-exempt substitute, with a short exemption list that includes carbon dioxide, nitrogen, water and specified hydrocarbon end-uses.

  • B — The ban was never limited to refrigerants still in production; phase-out status is irrelevant to it.
  • C — This was the position before 1 January 2018, when the rule was extended to non-exempt substitutes.
  • D — The fifty-pound threshold belongs to the leak repair rules in 82.157, not to the venting prohibition.

Concept being tested

25 items on every test, whichever type you sit. Group I covers the environmental impact of CFCs, HCFCs and substitute refrigerants; the laws and regulations, meaning the Clean Air Act, the Montreal Protocol and the section 608 rule itself; and the changing industry outlook. EPA's topic list adds refrigerant identification, the three R definitions, recovery techniques, dehydration evacuation, safety and cylinder handling, and shipping labels. — 25% of the exam. Study guide for Core.

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Primary references

  1. 40 CFR Part 82 Subpart F — Recycling and Emissions Reduction — Office of the Federal Register (eCFR) · government · retrieved 2026-09-22, verified 2026-09-22
  2. Section 608 Test Topics — United States Environmental Protection Agency · primary · retrieved 2026-09-22, verified 2026-09-22
Last reviewed: 2026-10-07Reviewed by: David Miller, CM, EPA Universal, HVAC/R master technician & refrigerant compliance reviewHow we verify facts