Do I need Core to certify in Type I, II, or III?

Yes. Core is required for every type. You must pass Core plus at least one Type to earn certification.

What does the EPA 608 Core section cover?

Clean Air Act / Section 608 framework, ozone-depletion basics, refrigerant management under the AIM Act, recovery requirements, leak repair triggers, safe handling, and recordkeeping.

How many questions are on the real Core test?

Format varies by EPA-approved testing organization. Use EPA's Section 608 test-topics page to see what Core assesses. Our Core track has 50 practice questions; the timed mock uses up to 25 per section at a 70% practice benchmark.

EPA 608 Core Practice Questions — Free Refrigerant Certification Prep

The Core section is required for every EPA 608 technician — Type I, II, or III all start here. These free Core practice questions cover the Clean Air Act prohibitions, recovery requirements, leak rates and repair triggers, refrigerant management under the AIM Act, safe handling, and recordkeeping. Every item is paraphrased from 40 CFR Part 82 Subpart F with the relevant section cited in the answer key.