EPA 608

Theepasection608Techniciancertificationexam

The EPA does not give the exam itself. It approves certifying organizations, such as trade associations, training institutes, equipment manufacturers, unions, schools, and state agencies, to administer tests drawn from an EPA-approved question bank. The approved program scores the test and issues your certification card. Because every approved program uses the same regulatory structure, the exam format is the same wherever you test.

Exam Pattern

Each section contains 25 four-option multiple-choice questions, so a Universal exam has 100 questions. Every section is scored separately, and the passing standard for a proctored, closed-book section is 70 percent, which means at least 18 correct answers out of 25 (72%). You must pass Core to receive any certification. A section you pass stays passed: if you pass Core, Type I, and Type II but miss Type III, you are certified Type I and Type II and can retake only Type III later to reach Universal.

Certifci ation	SectionsYouMustPass	EquipmentYouMayService
TypeI	Core+TypeI	Small appliances: factory-sealed units with 5 lb or less of
		refrigerant suchasrefrigerators freezers roomairconditioners , , , ,
		PTACs dehumidifiers watercoolers andvendingmachines , , ,
TypeII	Core+TypeII	High -, very high -, and medium-pressure appliances (except small
		appliancesandmotorvehicleA/C):residentialandcommercial
		split systems heat pumps rooftop units supermarket and walk -in , , ,
		refrigeration cascadesystems ,
TypeIII	Core+TypeIII	Low-pressure appliances mainly centrifugal chillers using R-123 , ,
		R-11 R-1233zd(E) or R-514A , ,
Universal	Core+TypesI II andIII , ,	Alloftheabove

Testing Options

Required for Type II, Type III, and Universal. A proctor monitors

A program certifying Type I only may offer an unproctored,

the test in person or, through programs that offer it, by remote

open-book test, often online or by mail. The passing standard

online proctoring. No notes, books, or phones are allowed.

rises to 84% (21 of 25 per section), and an open-book Type I

Passing standard: 70% (18 of 25 per section).

result cannot be combined with other sections toward Universal certification.

Federal rules set no time limit; each program sets its own, and most candidates finish a section in well under an hour. Fees are also set by each program and vary with the format and any training included. Bring the government-issued photo ID your program requires.

What the Exam Covers

Section	TypicalQuestionTopics	GuideSection
Core	Ozonedepletionanditseffects;ODPandGWP;theCleanAirActandMontrealProtocol;	Sections1and2
	phaseoutdates;ventingprohibition;salesrestriction;thethreeR's;recoveryequipment
	andcylinders;shipping;therefrigerationcycle;evacuationanddehydration;leaktesting;
	safetygroups;personalsafety
TypeI	Small -appliance definition; 90% / 80% / 4 in Hg recovery rules; self -contained and .	Section3
	system-dependent recovery; access valves; unusual and flammable refrigerants; disposal
TypeII	Leakdetection;leakrepairthresholdsanddeadlines;recoverytechniques;required	Section4
	evacuation levels; major and non-major repairs; charging; A2L and brazing safety
TypeIII	Low-pressure refrigerants; purge units; rupture discs; leak testing with controlled heat;	Section5
	recovery and evacuation levels; preventing freeze-ups; charging; oil handling; equipment-
	roomsafety

EPA-approved programs use an updated question bank. The format is unchanged (four sections of 25 questions, closed book, and the same passing standards), and the questions reference current refrigerants such as R-32, R- 454B, and R-1234yf and include general knowledge of A2L and A3 refrigerants. The rules tested are those of Clean Air Act Section 608. This guide covers current refrigerants and the traditional refrigerants still found in the field.

Your Certification Card

The certifying organization, not the EPA, issues your wallet card, which lists your name, the certification types earned, the organization, and your certification number. Section 608 certification does not expire, and there is no continuing- education requirement. Keep the card: refrigerant wholesalers must verify certification before selling you regulated refrigerant, and employers and equipment owners may ask to see it. If you lose it, request a replacement from the organization that certified you.

Why Certification Matters

It is a federal requirement

Performing service that could release refrigerant without the proper certification violates the Clean Air Act and can bring civil penalties for both the technician and the employer.

It lets you buy refrigerant

Sales of ozone-depleting and most substitute refrigerants, including HFCs, are restricted to certified technicians.

It protects the atmosphere

Certified technicians recover refrigerant instead of venting it, which protects the ozone layer and limits emissions of high-GWP gases.

It opens career doors

Most HVAC, refrigeration, and appliance employers require Section 608 certification, and Universal certification qualifies you for every type of equipment.