WHO MUST BE CERTIFIED Any
person that services Motor Vehicle Air Conditioning (MVAC) must be certified. Servicing of motor vehicle air
conditioning includes repairs,
leak testing, and "topping off" of air conditioning
systems low on refrigerant, as well as any other repair to the vehicle which requires dismantling any part of the air conditioner.
NOTE: Service performed on HCFC‐22 air conditioner systems
typically found on busses, is NOT covered under section 609, but rather section 608 of the Clean Air Act. Technician certification IS required under section 608. For more information on Section 608
certification, contact The ESCO Institute at 1
(800)726‐9696.
TEST FORMAT The certification test contains 50 multiple choice questions. All of the information necessary for the technician to achieve a passing score on the certification testis contained within this manual. The certification test will contain a variety of questions from each of the topics covered.
