Study guide
11.3 Compliance Checklist and Best Practices
EPA 608 Technician Certification Exam
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1 Introduction to EPA 608 Certification
1.1 What EPA 608 Is and Who Needs It 1.2 Exam Format, Scoring, and Administration 1.3 How to Study for EPA 608
2 Regulations and the Clean Air Act
2.1 Clean Air Act Overview 2.2 Penalties and Enforcement 2.3 Montreal Protocol and International Agreements 2.4 AIM Act and HFC Phasedown Schedule 2.5 SNAP Program and Refrigerant Transitions
3 Refrigerants and Ozone Science
3.1 The Science of Ozone Depletion (ODP and GWP) 3.2 Refrigerant Classification, ASHRAE Numbering, and Safety Groups 3.3 Common Refrigerants: Properties, Applications, and Phaseout Status 3.4 Refrigerant Blends: Glide, Fractionation, and Liquid Charging
4 The Refrigeration Cycle
4.1 The Basic Refrigeration Cycle 4.2 System Components in Detail 4.3 Heat Transfer and Pressure-Temperature Relationships
5 Refrigerant Safety and Handling
5.1 Refrigerant Hazards and Health Effects 5.2 Safe Handling Practices, PPE, and Cylinders 5.3 A2L (Mildly Flammable) Refrigerant Safety
6 Recovery, Recycling, and Reclaiming
6.1 The Three Rs: Recover, Recycle, Reclaim 6.2 Recovery Equipment Requirements 6.3 Required Levels of Evacuation 6.4 Refrigerant Sales Restrictions and Recordkeeping
7 Leak Detection and Repair
7.1 Leak Detection Methods 7.2 Leak Repair Requirements and Trigger Rates 7.3 Leak-Rate Calculation, Recordkeeping, and Reporting
8 Type I — Small Appliances
8.1 What Counts as a Small Appliance 8.2 Type I Recovery Requirements 8.3 Type I Procedures, Access Valves, and the Open-Book Exam
9 Type II — High-Pressure Appliances
9.1 What Type II Covers: High-Pressure System Overview 9.2 Type II Recovery Methods and Required Evacuation Levels 9.3 Leak Detection, the Repair Triggers, and Recordkeeping 9.4 The R-22 Phaseout, Retrofits, and the Move to Lower-GWP A2Ls
10 Type III — Low-Pressure Appliances
10.1 Low-Pressure System Fundamentals 10.2 Purge Units and Air Management 10.3 Type III Recovery and Procedures 10.4 Type III Leak Testing
11 10. Disposal, Shipping, and Compliance
11.1 Equipment Disposal Requirements 11.2 Refrigerant Shipping and Transport 11.3 Compliance Checklist and Best Practices
12 Final Review and Exam Strategy
12.1 High-Yield Core Section Review 12.2 Type I vs Type II vs Type III: Side-by-Side Review 12.3 How the Exam Works and Exam-Day Strategy
11.3 Compliance Checklist and Best Practices
Key Takeaways Explain This Topic AI
EPA 608 certification never expires, but technicians must keep proof of certification at their place of business and may need to produce it on demand
Three (3) years is the universal retention period for sales records, leak-repair records, disposal verification statements, and service records
The 50-lb threshold (ozone-depleting refrigerants; 15 lb for HFCs under Part 84 since 2026) triggers owner/operator recordkeeping: service records, leak inspections, and a report to EPA if an appliance leaks 125% or more of its charge in a calendar year
Only Section 608 certified technicians (or their employers, or buyers for resale) may purchase refrigerant for stationary equipment in any container size; the only general exception is small cans (2 lb or less) of MVAC refrigerant with a unique fitting and self-sealing valve — and the seller's invoices create a paper trail
An EPA audit checks certifications, recovery-equipment certification, recovery/recordkeeping logs, leak-repair documentation, and disposal verification statements
Last updated: October 2026
Compliance Is a System, Not a Single Rule
Everything in the previous chapters — venting prohibition, certification, recovery levels, leak repair, disposal — comes together as one compliance program. EPA enforces it through inspections and audits , and violations carry civil penalties of up to $124,426 per day, per violation under the current inflation-adjusted figure (40 CFR 19.4). The good news for the exam and the field: compliance is mostly about documentation and discipline . If you can prove what you did, you are usually defensible. This section is your practical checklist.
The Daily Technician Compliance Checklist
Follow this numbered routine on every job:
Verify your certification covers the equipment. Type I (small appliances), Type II (medium- through very-high-pressure), Type III (low-pressure), or Universal. Keep proof of certification at your place of business .
Identify the refrigerant from the nameplate or with an electronic identifier before opening anything.
Confirm your recovery/recycling equipment is EPA-certified (required for equipment made on or after Nov 15, 1993) and in good working order.
Recover before opening — never vent any regulated refrigerant.
Use nitrogen with a regulator for pressure testing — never oxygen or compressed air.
Recover to the required evacuation level for the system type and charge size, then verify it.
Document the refrigerant added or removed (type, amount, date).
Charge zeotropic blends as liquid , and never mix refrigerant types.
Label and store cylinders correctly (gray/yellow recovery cylinders, current test date, under 80% fill).
Retain all records for 3 years.
The Sales Restriction (and Why It Matters)
EPA restricts who can buy regulated refrigerant. Refrigerant in any size container may be sold only to Section 608 certified technicians (Section 609 technicians only for MVAC refrigerant), employers of certified technicians, or buyers for resale. The one exception is small cans of 2 lbs or less of MVAC refrigerant with a unique fitting and (if made since January 1, 2018) a self-sealing valve, which may be sold to uncertified DIY car owners. This restriction is the front end of the compliance chain — it is why your wholesaler asks for your certification number, and it is a record the seller must keep for 3 years.
Recordkeeping: Who Keeps What, and for How Long
The number to memorize is 3 years — it is the universal retention period. The party that must keep the record changes with the document type.
Record type Who keeps it Retention Trigger / threshold
Proof of certification Technician (at place of business) Until 3 years after no longer working as a technician Always
Refrigerant sales records Seller / distributor 3 years All sales except exempt substitutes and small MVAC cans
Service / refrigerant-added records Owner/operator (technician provides invoice) 3 years Appliance ≥ 50 lbs charge
- Leak inspection & repair records Owner/operator 3 years Appliance ≥ 50 lbs charge
- Chronic-leak report to EPA Owner/operator 3 years Leaks ≥ 125% of full charge in a calendar year
- Disposal verification statement Final person in disposal chain 3 years Appliance arrives empty
- Reclamation records Certified reclaimer Per transaction Reclaimed refrigerant
- The 50-lb Owner/Operator Threshold
Owners or operators of appliances containing 50 or more pounds of refrigerant carry the heaviest recordkeeping load. They must:
Keep servicing records documenting the date, type of service, and quantity of refrigerant added .
Maintain leak inspection and repair-verification records.
Report to EPA any such appliance that leaks 125% or more of its full charge in a calendar year.
Technicians servicing those 50-lb-plus appliances must hand the owner an invoice showing the amount of refrigerant added so the owner can meet these duties.
What an EPA Audit Actually Checks
When an inspector arrives — or requests documents — they typically look for:
Technician certifications on file for everyone handling refrigerant.
Recovery/recycling equipment certification (the manufacturer's EPA certification for post-1993 equipment).
Recovery and recordkeeping logs — what was recovered, when, and how it was reconciled.
Leak-rate calculations and repair documentation for systems over the size thresholds, including follow-up verification tests.
Chronic-leak reports for any appliance that hit the 125% trigger.
Sales records proving refrigerant was sold only to certified buyers.
Disposal verification statements for equipment received empty.
Worked Example: A facility owns a 600-lb R-123 chiller. In one calendar year it adds 780 lbs of make-up refrigerant chasing a leak. Is anything triggered?
Leak amount as % of charge: 780 / 600 = 130% of full charge in the calendar year .
Because 130% exceeds the 125% chronic-leak threshold , the owner must report this appliance to EPA .
The owner must also keep the service records and leak-repair documentation (it is a ≥ 50-lb appliance) for 3 years , and the technician must verify the repair and provide invoices showing refrigerant added.
Don't Confuse These (Common Exam Mistakes)
Phaseout vs. phasedown: CFCs/HCFCs are phased OUT (eliminated); HFCs are phased DOWN (reduced under the AIM Act, not eliminated).
Certification never expires , but you still must keep proof on hand.
Recycled vs. reclaimed: recycled refrigerant stays with the same owner ; reclaimed refrigerant is cleaned to AHRI 700 purity by a certified reclaimer and may be resold.
80% vs. 90% small-appliance recovery (90% with a working appliance compressor and recovery equipment made on or after November 15, 1993; 80% otherwise), versus the 80% fill limit for cylinders — different 80s.
For the Exam: 3 years is the universal retention period. The 50-lb charge triggers owner recordkeeping; 125% of charge lost in a calendar year triggers an EPA chronic-leak report. Refrigerant for stationary equipment, in any container size, is sold only to certified buyers (or their employers). An audit checks certifications, equipment certification, recovery logs, leak/repair records, sales records, and disposal verification statements.