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U.S. Environmental Protection Agency (via approved providers)

EPA Section 608 Type III

The EPA Section 608 Type III certification covers low-pressure appliances (centrifugal chillers operating below atmospheric pressure). Low-pressure refrigerant handling requires specialty equipment capable of pulling a vacuum. Type III is far less common than Type I/II and is typically pursued by technicians working in commercial/industrial HVAC or facility maintenance at universities and hospitals.

$40-$100 (exam only; course bundles $150-$300)

Cost

Lifetime (no formal expiration)

Validity

Harder than Type I/II (50-question exam including low-pressure recovery at 0 psig held for 5 minutes)

Difficulty

No formal renewal; stay current with refrigerant phase-outs and technology updates

Renewal

Who is this credential for?

Technicians servicing low-pressure appliances (centrifugal chillers, R-11/R-113/R-123 systems, large industrial chillers)

Renewal requirements

No formal renewal; stay current with refrigerant phase-outs and technology updates

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