• Please note that the Commercial Business and Law Exam must be passed in addition to the trade exam.
• Two years of residential and/or commercial experience within the last 5 years is required to qualify to test.

This license allows the installation, replacement, alteration, and repair of air conditioning equipment and systems which consist of a number of components necessary to produce conditioned air for environmental heating and cooling or both, within buildings.

$350 for a 2-year license and $175 for one year license. Submit an application to the state licensing board with documentation of your experience, financial information and your passing test scores.

Licensing Board for Contractors
Post Office Box 11329
Columbia, SC 29211
(803) 896-4686 www.llr.state.sc.us

• 80 questions and a time limit of 4 hours
• A score of 70% (35 questions correct) is needed to pass.
• Exam fee is $60
• Topics include: General Tubing,General Piping,Air Compressors,Heating and Cooling Equipment,Pipe Assembly,Load Calculations,Piping Systems,Refrigerants,Heating and Cooling Principles,Drain Piping,Valves,Water Treatment for Mechanical Systems,Piping Specialties,Pumps,Mechanical Sound, Vibration, & Seismic Control,Piping Insulation,Hangers and Supports,Testing, Adjusting & Balancing (TAB),Safety,HVACR Control Fundamentals,Control Schematics & Wiring Diagrams,Exhaust Systems,Ventilation Equipment & Devices,Filtering Systems,Fiberglass Ducts,Metal Ducts,Machine Room,Air Conditioning Systems,Heat Pumps,Duct Systems Components,Mechanical Sheet Metal Devices/Systems,Furnaces (Warm Air Heating Equipment),Specialized Heaters,Chimneys, Flues, Vents, and Vent Connectors,Duct Conversions/Equivalencies,General Duct Systems Knowledge & Principles,LP Gas,Natural Gas,General Fuel Knowledge,Combustion Air
• To schedule an examination, contact PSI Examination services at 1-800-733-9267.

The following references are permitted to be taken into the examination. These references may be tabbed (with a permanent index tab) and highlighted. They are available for purchase from our online contractor’s bookstore or by calling our office at 1-800-952-0910.

• ACCA Duct Slide Rule
• International Fuel Gas Code 2003
• International Mechanical Code 2003
• Manual D, Residential Duct Systems
• Manual J, Residential Load Calculations
• Manual N, Commercial Load Calculations
• Modern Refrigeration and Air Conditioning
• OSHA 29. CFR 1926 for Contractors
• Pipefitter's Handbook

We are currently in the process of developing courseware for the South Carolina Refrigeration Contractor License. We do however stock all of the state approved reference materials. For more information, contact our office at 1-800-952-0910.