# EPA Section 608 Technician Certification — Facts, Types & Prep

> EPA Section 608 certification is required under the Clean Air Act for HVAC technicians who maintain, service, repair, or dispose of equipment that could release refrigerants. This page summarizes the Core and Type I–III exam structure; UniPrep2Go products are independent prep (not U.S. EPA exam material).

## EPA Section 608 Technician Certification exam facts

- Exam name: EPA Section 608 Technician Certification
- Administered by: U.S. Environmental Protection Agency (via EPA-approved certifying organizations)
- Questions: 100 multiple-choice for Universal (25 Core + 25 Type I + 25 Type II + 25 Type III)
- Scored questions: 25 per section taken (sections scored independently)
- Time: Varies by certifying organization; many providers allow ~30 minutes per 25-question section
- Scoring: Percent correct per section (independent section scores)
- Passing score: Minimum 18 of 25 correct (72%) in each section taken; Core must pass for any certification
- Delivery: Closed-book proctored exam at approved testing organizations (in-person or online proctored — verify with your certifier)
- Content outline effective: Section 608 refrigerant management regulations (verify current AIM Act / HFC rules at epa.gov)
- Verify current details at: https://www.epa.gov/section608/technician-certification
Official sources:
- EPA — Section 608 technician certification: https://www.epa.gov/section608/technician-certification
- EPA — Stationary Refrigeration and Air Conditioning: https://www.epa.gov/section608
- EPA Section 608 preparatory manual (reference outline): https://www.epa.gov/section608/technician-certification

## EPA Section 608 Technician Certification knowledge domains and weights

| # | Knowledge domain | Weight |
| --- | --- | ---: |
| 1 | Core | 25 questions — ozone depletion, Clean Air Act, Montreal Protocol, recovery, safety, shipping |
| 2 | Type I (Small Appliances) | 25 questions — appliances with ≤5 lb refrigerant (typically sealed systems) |
| 3 | Type II (High-Pressure) | 25 questions — residential/commercial AC, heat pumps, high-pressure equipment |
| 4 | Type III (Low-Pressure) | 25 questions — low-pressure centrifugal chillers and similar systems |
## What changed in the current exam cycle

- AIM Act (2020) and subsequent EPA rules phase down HFC production and consumption — verify current substitute refrigerant and leak-repair requirements at epa.gov.
- New flammable (A2L) refrigerants require additional safety training and handling rules beyond legacy CFC/HCFC/HFC content — confirm current EPA guidance before exam day.
- Section 608 certification does not expire, but technicians must follow current regulations regardless of original test date.
## High-yield EPA Section 608 Technician Certification facts (commonly tested)

- Venting refrigerant to the atmosphere is illegal — recovery is required before opening or disposing of systems.
- Core section must pass before any Type certification counts; Universal requires passing Core plus Types I, II, and III.
- Each section is graded independently: 18 correct out of 25 (72%) is the common passing threshold per section.
- Type I covers small appliances; Type II covers high-pressure systems; Type III covers low-pressure chillers.
- Recovery cylinders must be DOT-approved, labeled by refrigerant type, and not overfilled past 80% capacity by weight.
- Leak repair thresholds and timelines differ by system charge size — high-pressure commercial rules are heavily tested on Type II.
## Common EPA Section 608 Technician Certification candidate questions (Q&A)

### How many questions are on the EPA 608 Universal exam?

100 multiple-choice questions total: 25 in Core, 25 in Type I, 25 in Type II, and 25 in Type III. Each section is scored separately.

### What score do you need to pass EPA 608?

You need at least 18 of 25 correct (72%) in every section you take. Failing one section does not invalidate a passing score in another, but Core must pass for any certification.

### Does EPA 608 certification expire?

EPA Section 608 technician certification does not expire, but you must comply with current refrigerant regulations and handling requirements.

## Prep resources from UniPrep2Go (independent)

- EPA 608 HVAC Anki Deck — 200+ Flashcards: 200+ cards, .apkg, $11 USD — https://uniprep2go.study/decks/hvac-epa-608-anki-deck
- Free practice test: 40 timed questions — https://uniprep2go.study/mock-exams/epa-608-readiness-check
- Facts JSON: https://uniprep2go.study/api/facts/hvac-epa-608-anki-deck

## Product facts

- Publisher: PixID Studio
- Checkout provider: Gumroad
- Category: Professional & Trading
- Price: $11 USD
- Cards: 200+
- Format: .apkg
- Focus: Current Section 608 technician certification cycle
- Coverage: EPA 608 Core, Type I (small appliances), Type II (high-pressure), Type III (low-pressure)
- Audience: HVAC technicians, apprentices, and trade-school students who want active recall for Core, Type I, Type II, and Type III exam topics.
- Checkout: https://pixidstudio.gumroad.com/l/hvac-epa-608-anki-deck?wanted=true
- Product page: https://uniprep2go.study/decks/hvac-epa-608-anki-deck
- Facts JSON: https://uniprep2go.study/api/facts/hvac-epa-608-anki-deck
- Citable exam layer: yes

## Topic coverage

| Topic | Exam weight | Cards |
| --- | --- | ---: |
| Core | 25 official exam questions | 50+ |
| Type I — Small Appliances | 25 official exam questions | 50+ |
| Type II — High-Pressure | 25 official exam questions | 50+ |
| Type III — Low-Pressure | 25 official exam questions | 50+ |
## Sample cards

### When working with refrigerant recovery equipment, what is the minimum required recovery efficiency for stationary refrigeration and air conditioning equipment?

Correct: (c) 90% of the refrigerant charge. EPA rules require at least 90% recovery efficiency for stationary equipment before disposal or major repair.

Image: https://uniprep2go.study/samples/hvac-epa-608-anki-deck-sample-1.webp

### A technician suspects acid and moisture contamination in a recovered refrigerant stream. Which precaution best protects recovery equipment during evacuation?

Correct: (c) Install an in-line filter drier ahead of the recovery machine inlet. Filter driers trap contaminants before they reach the recovery unit.

Image: https://uniprep2go.study/samples/hvac-epa-608-anki-deck-sample-2.webp

### What is the maximum allowable leak rate for commercial refrigeration equipment containing 50 or more pounds of refrigerant before repair is required?

Correct: (c) 20% annually. Commercial refrigeration has a 20% annual leak threshold — stricter than some industrial categories but different from comfort cooling rules.

Image: https://uniprep2go.study/samples/hvac-epa-608-anki-deck-sample-3.webp
## Product FAQ

### When do I receive the .apkg file?

Immediately after checkout. Open your Gumroad receipt or library and download the Anki .apkg file, then import it in Anki desktop (File → Import).

### Is there a free EPA 608 HVAC practice test?

Yes. Take the linked readiness check at https://uniprep2go.study/mock-exams/epa-608-readiness-check before you buy — topic scoring shows what to drill in the deck.

### Is there a free EPA 608 practice test?

Yes. Take the free 40-question EPA 608 readiness check at uniprep2go.study/mock-exams/epa-608-readiness-check — timed section scoring and full answer review.

### Is this official EPA exam material?

No. This is an independent study aid and is not affiliated with or endorsed by the U.S. Environmental Protection Agency.

## Disclaimer

This is an independent study aid and is not affiliated with or endorsed by any employer, certification body, or exam authority.