EPA Section 609 MVAC Technician Certification PreparationApproved ProgramsMVAC Requirements
Environmental & technician safety

Environmental & Service Safety

Ozone depletion, climate impact, pressure, frostbite, ventilation, ignition risk, and safe service practices.

Do not intentionally vent

Refrigerant should be recovered during service rather than knowingly released.

Control pressure and exposure

Liquid refrigerant can cause frostbite and pressurized systems can release material violently.

Account for refrigerant properties

Some newer refrigerants have different flammability classifications and require approved equipment and procedures.

Use ventilation and protective equipment

Follow the approved program, equipment manufacturer, and vehicle manufacturer instructions.

Common mistakes

  • Heating cylinders unsafely
  • Ignoring ventilation
  • Treating all refrigerants as identical
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