EPA 609 study plan

Identify each major MVAC service tool by function (manifold gauge set, vacuum pump, recovery machine, recovery cylinder, refrigerant identifier, leak detector, micron gauge) and state what it is used for without notes.

Explain why recovery must precede any opening of the system, and describe the path refrigerant takes from system to recovery cylinder.

Distinguish recovery, recycling, and reclaim, and state which one a typical shop can perform on site.

Label the parts of a manifold gauge set and describe the purpose of each valve and hose.

Demonstrate, in writing, the correct cylinder procedures: identifying refrigerant type, checking gross weight and tare weight, and calculating the 80% fill limit.

List the safety rules for recovery cylinders (never fill above 80%, never mix refrigerants, use DOT-approved cylinders, keep valves closed and capped).

Describe how to evacuate a system with a vacuum pump and how a micron gauge confirms dehydration.

Explain why a system should never be evacuated into the open air and what to do instead.

Match each piece of MVAC servicing equipment to the EPA rule that governs its use (certification requirement, recovery efficiency standard, equipment certification).

State who may purchase refrigerant and who may service MVAC systems under Section 609, and describe the certification card requirement.

Explain the difference between Section 608 and Section 609 applicability and give one example system for each.

Describe recordkeeping expectations for refrigerant purchases and recovery equipment.

Explain the ozone depletion mechanism and identify chlorine and bromine as the destructive agents.

Rank CFC-12, HCFC-22, and HFC-134a by ozone depletion potential and global warming potential, and explain the trade-off between the two metrics.

Summarize the Montreal Protocol and the Kigali Amendment in terms of what each targets.

Describe the health and environmental consequences of venting refrigerant.

Explain the greenhouse gas concept and why a small mass of HFC refrigerant has a large CO2-equivalent impact.

Calculate CO2-equivalent emissions for a given mass of refrigerant using a stated GWP value.

Describe the proper handling of a recovered refrigerant charge from removal through recycling or reclaim to final disposal.

Identify prohibited practices such as venting, using disposable cylinders improperly, and mixing refrigerant types.

Walk through a complete leak detection, recovery, evacuation, and recharge sequence in the correct order, stating the reason for each step.

Identify common procedural errors that would fail an inspection or violate the rule, and state the correct action for each.

Explain the certification exam structure and the passing requirements, and describe how to register.

List the required safety practices for handling refrigerant, including frostbite and asphyxiation hazards.

Complete a full-length timed practice exam under test conditions and record the score by domain.

Review every missed question and write the correct concept in your own words.

Re-drill the two weakest domains with focused self-quizzing until each reaches a stated accuracy target.

Recite the key numeric thresholds (fill limit, recovery efficiency, GWP and ODP values) from memory.

Re-take a second full-length timed practice exam and compare scores against week 7.

Close remaining gaps by re-teaching the weakest topics aloud or in writing without notes.

Confirm exam logistics: test location or online proctoring, identification, and fee.

Assemble a one-page final review sheet of numbers, definitions, and procedures.