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What is the format? These ten original multiple-choice questions introduce EPA Section 608 Practice — Universal (Core, Types I–III) study topics. They are practice material, not actual exam items. Official assessments may use different formats; check the current candidate guide for your credential.
What does this prepare me for? Core and Types I–III subject practice. Certification testing and cards come from EPA-approved certifying organizations, not CodeReady.
What should I study? Start with core, type i, type ii. This bank uses 40 CFR Part 82 Subpart F; 40 CFR Part 84 (AIM Act). Check the current exam objectives, adopted editions, and permitted references before planning your study.
How should I practice? Choose an answer before opening the explanation. Read the cited reference and revisit unfamiliar topics. These samples are general preparation, not jurisdiction-specific advice.
Explore full EPA Section 608 Practice — Universal (Core, Types I–III) →
1 / Core
Chlorine
Ultraviolet radiation breaks down CFCs in the stratosphere, releasing chlorine that can participate repeatedly in ozone-destroying reactions.
EPA Section 608 Technician Certification study guidance — Test Topics
2 / Core
Extending many requirements to non-exempt substitute refrigerants
The 2016 rule extended provisions such as certification, recovery, and sales restrictions to non-exempt substitutes. The subsequent 2020 rollback was narrower.
EPA Regulatory Updates: Section 608 Refrigerant Management Regulations
3 / Core
A compatible refillable recovery cylinder with the required pressure rating
Use a refillable recovery cylinder suitable for the refrigerant and pressure. Nonrefillable cylinders must not be converted into recovery containers.
EPA Section 608 Technician Certification study guidance — Test Topics
4 / Core
An electronic absolute-pressure micron gauge
A micron gauge resolves low absolute pressures that a compound gauge cannot measure accurately enough for dehydration verification.
EPA Section 608 Technician Certification study guidance — Test Topics
5 / Type I
Factory manufactured, charged, and hermetically sealed with five pounds or less
The small-appliance definition requires factory manufacture, charging, and hermetic sealing, with no more than five pounds of refrigerant.
40 CFR 82.152
6 / Type I
Refrigerant may remain trapped on one side of the restriction
A restriction can prevent pressure equalization. Provide appropriate access and verify recovery from the affected portions rather than relying on one gauge reading.
EPA Section 608 Technician Certification study guidance — Test Topics
7 / Type II
Type II
Section 82.161(a)(1)(ii) places medium-, high-, and very high-pressure appliances in Type II, excluding small appliances, MVACs, and MVAC-like appliances. Universal certification also includes this scope.
40 CFR 82.161; EPA Section 608 Technician Certification study guidance
8 / Type II
10 inches Hg vacuum
Exactly 200 lb belongs to the 200-pounds-or-more row. For newer recovery equipment, that high-pressure row requires 10 inches Hg vacuum.
40 CFR 82.156 Table 1
9 / Type III
R-123
The definition lists R-123 among low-pressure refrigerants. Classification is based on liquid-phase saturation pressure at the specified reference temperature.
40 CFR 82.152
10 / Type III
Substantial refrigerant can remain as vapor and dissolved in oil
The recovery endpoint applies to the appliance after all liquid is removed. Remaining vapor and refrigerant released from oil must also be recovered as needed.
40 CFR 82.156
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