EPA 608 Universal study plan
EPA 608 Universal · Give each week a clear focus.
8 weeks · About 7 hours per week
Type II - high- or very high-pressure appliances, except small appliances and MVACs
Identify the operating pressure range, cylinder valve type, and liquid/vapor charging rule for R-410A, R-32, R-134a, R-404A, and R-22
Apply the 80% cylinder fill rule to compute the maximum safe fill weight of two sample recovery cylinders
Distinguish recovery, recycling, and reclaiming, and name the equipment each one requires
Sequence the evacuation procedure for a high-pressure system from recovery through micron-level standing vacuum test
State the leak-detection method approved for each refrigerant class and explain why a halide torch is unacceptable for HFCs
Your checkpoint
Score at least 80% on a self-written 20-question Type II quiz covering refrigerant ID, fill rule, and evacuation.
Type II - high- or very high-pressure appliances, except small appliances and MVACs & Type I - small appliances
Compute the EPA-required recovery vacuum (0 psig, 10 in Hg, or 20 in Hg) from a given system charge and component type
Compare Type I small-appliance recovery targets with Type II targets for the same charge weight
Diagram the four common leak-detection techniques and rank them by sensitivity
List three SNAP-acceptable refrigerant substitutes for small appliances and state one use restriction on each
Explain why R-410A requires different gauges and manifold ratings than R-22
Your checkpoint
One-page reference sheet mapping system charge and equipment type to the required recovery vacuum level, with no errors on a self-check.
Type III - low-pressure appliances
Describe how a low-pressure chiller operates below atmospheric pressure and why air and moisture enter the system
Explain the function of the purge unit and identify what it removes from the system
Explain why moisture in a low-pressure system forms acids and how that damages the compressor and motor windings
State the EPA-required evacuation level for low-pressure appliances and compare it with the Type II levels learned in week 2
Identify the role of the rupture disc and relief devices on low-pressure equipment and why they differ from high-pressure relief valves
Your checkpoint
A labeled diagram of a low-pressure chiller refrigerant loop with purge unit, rupture disc, and charging points annotated from memory.
Type I - small appliances & Universal - all types of equipment
Map the Section 608 core rules: ozone-depletion science, CFC and HCFC phase-out dates, and the venting prohibition
Apply the sales-restriction rules to determine who may buy refrigerant and what certification is required
Solve five scenario questions that mix small-appliance and universal content
Review and correct every missed item from weeks 1 through 3 and log the reason for each miss
Your checkpoint
Timed 25-question mixed practice section (Type I plus core) completed at 80% or better.
Universal - all types of equipment
Apply the leak-repair requirements, including repair deadlines and the exemption conditions, to four scenario questions
Identify the records a technician must keep for refrigerant purchases, recovery, and disposal
Explain safe handling practices for nitrogen pressurization, brazing, and flammable refrigerants
Differentiate the certification type required for each class of equipment and for the Universal certification
Your checkpoint
A written compliance checklist covering leak repair, recordkeeping, and safe handling, verified against your study notes.
Universal - all types of equipment & Type III - low-pressure appliances
Integrate recovery, evacuation, and charging decisions across high-pressure, low-pressure, and small-appliance systems in one decision tree
Resolve ten mixed questions where the equipment type is not stated outright and must be inferred from refrigerant and pressure clues
Re-explain the three most-missed concepts from weeks 1 to 5 without notes
Your checkpoint
Completed decision tree plus a 30-question mixed Domain 3 and 4 set scored at 85% or better.
Type I - small appliances & Type II - high- or very high-pressure appliances, except small appliances and MVACs & Type III - low-pressure appliances & Universal - all types of equipment
Take two full-length practice exams under timed conditions and record per-domain scores
Rank your four domain scores and drill the two weakest domains until each reaches 85%
Convert every missed question into a one-line rule you can recite
Your checkpoint
Scorecard showing all four domains at 85% or higher on the second full-length practice exam.
Type I - small appliances & Type II - high- or very high-pressure appliances, except small appliances and MVACs & Type III - low-pressure appliances & Universal - all types of equipment
Recite from memory the recovery vacuum levels, fill rule, and phase-out dates without reference material
Complete a final timed practice exam and review only the items missed
Simulate exam-day pacing by answering 25 questions in the allotted time per section
Your checkpoint
Final full-length practice exam passed with every section above the EPA passing threshold and a written list of the three facts to re-check the morning of the test.
Milestones
Week 2: Type II and Type I fundamentals: 80% or better on a 20-question self-quiz, and the recovery-vacuum reference sheet finished with zero self-check errors.
Week 4: First timed mixed section (Type I plus core) completed at 80% or better with all week 1 to 3 misses logged and corrected.
Week 6: Cross-domain decision tree finished and a 30-question mixed Domain 3 and 4 set scored at 85% or better.
Week 8: Two full-length practice exams complete; all four domains at 85% or higher on the final attempt and one line of remediation written for every missed item.