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South Carolina

Commercial Air Conditioning Contractor

Apply for the License
South Carolina Contractor’s Licensing Board
Synergy Business Park - Kingstree Building
110 Centerview Dr.
Columbia, SC  29210
Phone: (803) 896-4686
Exam Provider
PSI Services LLC
3210 E. Tropicana Ave
Las Vegas, NV  89121
Phone:  (855)  340-3701
Exam Type
Exam Content
Content Areas# of
General Piping1
General Tubing1
Pipe Assembly1
Piping Systems4
Drain Piping1
Piping Specialties1
Piping Insulation1
Hangers & Supports (General)1
Mechanical Sound, Vibration & Seismic Control1
Water Treatment for Mechanical Systems1
Heating & Cooling Principles2
Load Calculations7
Heating & Cooling Equipment1
Air Compressors1
Testing, Adjusting & Balancing (TAB)2
HVACR Control Fundamentals1
Control Schematics & Wiring Diagrams1
HVACR Control Systems1
Machine Room1
Air Conditioning Systems3
Heat Pumps4
Furnaces (Warm Air Heating Equipment)2
Specialized Heaters2
Chimneys, Flues, Vents & Vent Connectors3
Combustion Air2
General Fuel Knowledge1
Natural Gas2
LP Gas2
General Duct Systems Knowledge & Principles4
Duct Conversions / Equivalencies4
Mechanical Sheet Metal Devices / Systems2
Duct System Components5
Metal Ducts3
Fiberglass Ducts1
Filtering Systems1
Ventilation Equipment & Devices1
Exhaust Systems2
Total number of test questions:
Time allowed (hours):

All Commercial General and Mechanical Contractors are required to pass Business Management & Law exam in addition to any technical examinations required for the specific license category or subcategory.

Books Allowed in the Exam
South Carolina Mechanical Code, 2018, ICC –OR–
Buy from ICC
International Mechanical Code, 2018, ICC
Buy at Amazon
South Carolina Fuel Gas Code, 2018, ICC –OR–
Buy from ICC
International Fuel Gas Code, 2018, ICC
Buy at Amazon
Code of Federal Regulations, 29 CFR Part 1926 (OSHA), GPO [or] (OSHA) Selections by PSI, 2013
Buy from PSI
Manual N: Load Calculation for Commercial Summer & Winter Air Conditioning, 5th  Edition, 2012, ACCA
Buy at Amazon
Manual D: Residential Duct Systems, 3rd Edition, ACCA
Buy at Amazon
Manual J: Residential Load Calculations, 8th Edition, ver 2.50, 2016, ACCA
Buy at Amazon
Pipefitter’s Handbook, 3rd Edition, 1967, Forrest Lindsey
Buy at Amazon
ACCA Ductulator (Duct Slide Rule), ACCA
Buy at Amazon
Refrigeration & Air Conditioning Technology, 6th Edition, Whitman and Johnson, Delmar ITP
Buy at Amazon
Modern Refrigeration and Air Conditioning, 19th or 20th Edition, Althous, Turnquist, Bowditch, Bracciano
Buy at Amazon
Trane Air Conditioning Manual, (see p.6 of order form) Trane Company
PDF File Link
ASHRAE Handbook of Fundamentals, 1997, ASHRAE
Buy at Amazon
Available Study Materials
PSI OSHA Selections
Study Guide

Sample questions are based on the PSI publication titled “29 CFR PART 1926 Selections, as of June 2013” (highlighted in green above).

This file contains approx. 800 sample questions.

REMINDER:  PSI uses this book for many exams they offer.  Not all sections of this code will apply to your exam.

We also include a table showing the relationship between our questions and OSHA code sections.  Corrections to the original PSI publication are noted.

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