Free graded practice
EPA 608 Practice Test — Core, Type I, II, III and Universal
Graded practice so you walk into an EPA-approved proctored exam prepared — Core, Type I, II, III and Universal knowledge.
After the labs, you know which exam to book. You sit Core / Type I, II, III with an EPA-approved proctor — NATE, ESCO or HVAC Excellence — and that body issues the card. Exam fees are paid to them.
Prep forEPRANABCEPEPA 608NATE
- Interactive decision labs
- Built by working technicians
- Path-based verifiable certificate
- Know which exam to book
- Worldwide online
What you get
Scored domain practice
One question at a time, exam-style first-answer lock, a written explanation on every answer, and a practice score at the end.
Safety emphasis
Venting, skipping recovery and opening a charged system are flagged as safety-critical misses — a hard fail in the field, whatever the score says.
Links into real labs
Every domain connects to a graded diagnostic lab where you make the same call on simulated equipment, with a debrief on each decision.
The five domains
The certification exam is built from Core plus the Type you sit. Work the domain you need; Universal candidates work all of them in sequence.
Core
Ozone science and Clean Air Act basics, the venting prohibition, recovery levels and equipment, leak thresholds and record-keeping, evacuation and dehydration, charging discipline, cylinder safety and A2L awareness. Everyone sits Core — it is the foundation for every Type.
Which part of the Clean Air Act governs refrigerant handling on stationary air-conditioning and refrigeration equipment?
Type I — Small appliances
Factory-sealed equipment holding 5 lb of refrigerant or less: household refrigerators, window units, dehumidifiers, PTACs. Recovery levels and percentages, piercing valves and process tubes, and disposal rules when the appliance is scrap.
Study checklist: recovery % by compressor state · self-sealing piercing valves · disposal paperwork · oil and refrigerant separation. Practice sets expanding — scenario items are being added to the full Paths A–D bank.
Lab: Residential No-CoolType II — High and very-high pressure
Split systems, heat pumps, rooftop units and supermarket racks running R-410A, R-22, R-407C and similar. Recovery levels by appliance size, leak-rate thresholds and repair timelines, evacuation targets, and charging by superheat or subcooling.
The full 25-item Type II bank and the timed, exam-style mock live inside HVAC Technical Training — Paths A–D.
Included on a 90-day prep term — $697 founding · $997 list. The EPA exam fee is separate, paid to an EPA-approved certifying organization.
90 days of graded labs and mocks from enrolment. Your Academy certificate stays verifiable after that. Official exam fees are paid to the issuing body, not us. Access is not a licence and not lifetime.
Open HVAC Technical TrainingType III — Low-pressure systems
Centrifugal and absorption chillers running below atmospheric pressure, where leaks go inward. Purge units and non-condensables, rupture discs, controlled recovery that avoids tube freeze-up, and the in-leakage diagnostic mindset.
Study checklist: purge activity as a leak signal · water circulation during recovery · rupture disc and relief behaviour. Practice sets expanding — scenario items are being added to the full Paths A–D bank.
Open HVAC Technical TrainingUniversal
Universal is not a fifth syllabus — it is Core plus Type I, Type II and Type III passed in one programme. The efficient practice path is sequential: Core first until it is boring, then each Type, then mixed sets under time pressure.
Start the sequence with CoreRelated labs
Where the practice questions turn into field decisions. US nameplate readings (°F, psig, 60 Hz) apply by default.
A2L Safe Handling
Ventilation, A2L-rated tools and a no-spark mindset before you touch a mildly flammable refrigerant.
Play the lab
Overcharge / Undercharge Decision
Charging discipline on a residential split — read subcooling and superheat before you add or recover anything.
Play the lab
Residential No-Cool
Electrical isolation before opening the circuit — the same prove-dead discipline the Core set drills.
Play the lab
Superheat / Subcooling Decision
Match the charging method to the metering device and defend the number you picked.
Play the lab
New to the gauges? Read the field guides first: how to test a run capacitor and A2L safe handling — then come back and play the labs.
How this differs from the official exam
- Academy practice (here)
- Open-book friendly, instant explanations, a study score you can retake as often as you like. We grade practice so you know where you stand before you pay for a seat.
- The certification exam (EPA-approved proctor)
- Closed-book, proctored and identity-checked, administered by an EPA-approved certifying organization. They proctor and issue the card — no training provider can.
We stand behind this material. We research the live syllabus and we keep the labs aligned. When the authority updates the rules, we update the training. You are not buying a question-bank we will not defend. This practice stays aligned to the published EPA 608 domains: ozone and Clean Air Act basics, recovery, leak thresholds, evacuation, charging discipline and safety.
Already working in the field?
EcoService OS handles dispatch, Maya photo diagnostics, jobs and invoicing — separate from Academy training.
Training does not include a software subscription. Software does not issue a trade credential.
EPA 608 practice — honest answers
Where do I book my EPA 608 exam?
Work the graded practice here, then book Core plus the Type you need at an EPA-approved proctor — NATE, ESCO or HVAC Excellence are common ones. You sit Core / Type I, II, III with them and they issue the card. Exam fees are paid to the examining body.
Is this the official EPA 608 exam?
No. These are Academy-written study questions aligned to the published EPA 608 domains. The real certification exam is a proctored, closed-book exam administered by an EPA-approved certifying organization.
How do I get EPA 608 certified?
Pass the proctored exam through an EPA-approved certifying organization. Core plus Type I, II or III earns that Type; Core plus all three earns Universal.
Are these the real exam questions?
No. They are original practice questions written by working technicians against the published domains, with an explanation for every answer.
What do the four certification Types cover?
Type I covers small appliances (5 lb of refrigerant or less), Type II high and very-high pressure systems, and Type III low-pressure systems such as chillers. Universal is Core plus all three Types.
How does this fit the Academy labs?
Practice sets test what you know; the graded diagnostic labs make you apply it — recovering, evacuating, charging and verifying on simulated equipment with a debrief on every decision.
After the labs, you know which exam to book
- After the labs, you know which exam to book. Prep here for EPRA, NABCEP, EPA 608, NATE, CEC, SAQCC Gas and ESSCI, then book with that body when the labs are done.
- EcoPowerHub Academy is the prep and issues its own completion record. The examining body is the issuer of the credential you sit for.
- Work on photovoltaic, battery, and electrical systems involves potentially lethal voltages and must only be performed by qualified persons, in accordance with applicable codes, regulations, and employer safety programs.
- Labs and materials are educational. The technician and their employer remain solely responsible for safe work practices, isolation, PPE, and compliance on actual jobs.
- Exam and licence fees are paid to the examining body. Academy completion is training.