MACS J3126 Certificate Training

Heavy Duty Air Conditioning Certificate Training Course

The MACS J3126 Certificate Training Course is focused on the air conditioning systems found in Construction and Agricultural machines.

This course describes the recommended procedures for service and repair of MVAC systems in off-highway work machines, including safety, proper equipment and tools.

Based on the SAE Recommended Practice, “J3126 Air Conditioning Service Procedures for Off-Road Work Machines and Agricultural Tractors Using R-134a or HFO-1234yf Refrigerant.”

This professional development course explores these topics and prepares students for taking the certificate test.

Be one of the first to achieve this new certification from MACS!

Want to become a MACS J3126 Proctor/Trainer?

After successfully completing this training course and completing the application process, you can become eligible to participate as a proctor/trainer for the MACS J3126 program.

Note: This program is under development, anticipated completion July 2026.

Contact info@macsmobileairclimate.org for more information.