EPA 608 Study Guide 2026 — All 4 Sections Core to Universal

The EPA 608 exam covers 4 sections: Core, Type I, Type II, and Type III. This free preview shows you the key concepts and sample questions for each. The full study guide includes complete notes and 500+ practice questions.

Section 1: Core

Exam Weight
25%

Key Concepts to Study

  • Clean Air Act Section 608 regulations
  • Ozone depletion and the Montreal Protocol
  • Refrigerant recovery, recycling, and reclamation rules
  • Safety, shipping, and handling procedures

Sample Question

"What is the primary purpose of the Clean Air Act Section 608?"

Answer:To regulate the use and disposal of ozone-depleting substances and their substitutes

Section 2: Type I

Exam Weight
25%

Key Concepts to Study

  • Small appliances containing 5 lbs or less of refrigerant
  • Recovery equipment requirements
  • System-dependent vs self-contained recovery

Sample Question

"Which of the following is considered a small appliance under EPA regulations?"

Answer:A domestic refrigerator with a hermetically sealed compressor

Section 3: Type II

Exam Weight
25%

Key Concepts to Study

  • High-pressure and very high-pressure appliances
  • Leak detection and repair requirements
  • Evacuation levels and deep vacuums

Sample Question

"When is a major repair performed on a Type II appliance?"

Answer:When replacing the compressor, condenser, evaporator, or an auxiliary heat exchanger

Section 4: Type III

Exam Weight
25%

Key Concepts to Study

  • Low-pressure appliances (e.g., centrifugal chillers)
  • Leak testing at low pressures
  • Purge unit operation

Sample Question

"What is the typical operating pressure of a Type III low-pressure chiller?"

Answer:Below atmospheric pressure (in a vacuum)

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