EPA 608 Type III

First published: September 2, 2026Last verified: September 2, 2026Reviewed by the CertQuestUSA team

TL;DR

EPA 608 Type III: a 140-question practice bank for the real EPA Environmental standard, 2 full papers of 50 questions each with no repeats, every question citing the real regulation it comes from.

Where these questions come from

Every question in this bank cites a real source -- primarily 40 CFR (100%) of this exam's citations.

Not sure where you stand? Take the free diagnostic — 10 real questions across the exam's domains, no sign-up required, with a domain-by-domain breakdown at the end.

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2

full papers, no repeats

50

questions per paper

140

questions in the bank

What this exam covers

Core (all technicians)50%
Type III — Low-Pressure Appliances50%

5 real sample questions

A refrigerant has a liquid-phase saturation pressure of 200 psia at 104°F. Which appliance pressure classification does this fall into?

A. High-pressure (170–355 psia)

B. Medium-pressure (45–170 psia)

C. Low-pressure (below 45 psia)

D. Very high-pressure by pressure alone (above 355 psia)

Source: 40 CFR 82.152

A refrigerant has a liquid-phase saturation pressure of 100 psia at 104°F. Which appliance pressure classification does this fall into?

A. Medium-pressure (45–170 psia)

B. High-pressure (170–355 psia)

C. Low-pressure (below 45 psia)

D. Very high-pressure (above 355 psia)

Source: 40 CFR 82.152

Which certification type is required to legally service a household refrigerator (a factory-sealed unit with a small refrigerant charge)?

A. Type I (or Universal, which includes Type I)

B. Type II only

C. Type III only

D. No certification is required for household refrigerators

Source: 40 CFR 82.161(a)(1)

Why does the EPA regulate the handling of refrigerants under the Clean Air Act?

A. Refrigerants released to the atmosphere can deplete the stratospheric ozone layer or contribute to climate impact

B. Refrigerants are flammable and pose a fire code violation if not tracked

C. Refrigerant cylinders are considered hazardous waste containers under RCRA

D. Refrigerant sales generate excise tax revenue that must be reported to EPA

Source: 40 CFR 82.150

To whom may refrigerant requiring Section 608 certification generally be sold?

A. Only to technicians who hold the appropriate Section 608 certification

B. To any adult with a valid driver's license

C. To any HVAC business, regardless of individual technician certification

D. To anyone who signs a liability waiver

Source: 40 CFR Part 82, Subpart F (sales restriction)

Real-world data for this exam

Heating, Air Conditioning, and Refrigeration Mechanics and Installers: real median wageMay 2025$61,010/yr

Frequently asked questions

How many questions are on the CertQuestUSA EPA 608 Type III practice test?

140 questions total, split into 2 full papers of 50 each with no repeats across papers.

What topics does the EPA 608 Type III test cover?

2 domains, with the heaviest weight on Core (all technicians) (50%), and Type III — Low-Pressure Appliances (50%).

Where do CertQuestUSA's EPA 608 Type III questions come from?

Primarily 40 CFR (100%) of this bank's citations -- computed directly from this exam's own question sources, not a generic description.

Is there a free diagnostic for EPA 608 Type III?

Yes -- 10 real questions across the exam's domains, no sign-up required, with a domain-by-domain breakdown at the end.