Construction Trade Exam Research Area

Plumbing Contractor and Gas

Apply for the License

State of Oklahoma
Construction Industries Board

2401 N.W. 23rd Street, Suite 2F
Oklahoma City, OK 73107
Phone: (405) 521-6550
Toll Free: (877) 484-4424
Oklahoma Construction Industry Licensing Link

Exam Administrator

PSI Licensure : Certification
3210 E. Tropicana
Las Vegas, NV 89121
(800) 733-9267
PSI Web Site

Exam Type


Exam Content

Subject Areas # of
General Plumbing Knowledge and Regulations 10
Piping, Valves, and Control Valves 8
Fixtures and Equipment 8
Water Supply 10
Drains and Sewers 10
Vents 13
Traps, Interceptors, Indirect, and Special Waste 5
Isometric Analysis 7
Fuel Gas 10
Safety 4

Total number of test questions: 85
Time allowed (minutes): 180
In Oklahoma, you must also pass the Plumbing Business and Law Exam unless you are already a licensed electrical contractor who is adding a classification to your license.

Go to Business and Law Offering

Books Allowed in the Exam

1. International Plumbing Code, 2015, ICC. Buy at Amazon
2. International Fuel Gas Code, 2015, ICC. Buy at Amazon
3. Mathematics for Plumbers and Pipefitters, 8th Edition, 2012, Lee Smith. Buy at Amazon
4. Code of Federal Regulations - 29 CFR Part 1926 (OSHA), GPO - OR - (OSHA) Selections by PSI, (latest amendments). Buy from Publisher

Go to OSHA Resources

Recommended Study Materials

Oklahoma • Plumbing Contractor and Gas
Product NameValue  
Comprehensive Tutorial price More Information
Practice Tests ( 3 ) price More Information
The items above can only be ordered as part of the "Bundle" below and delivered by E-mail at this time

Discount Offers

The Bundle

Includes Tutorial(s) and
Practice Tests listed above

USPS Mail Logo
Buy Now

Return to the Oklahoma State Page

Copyright Notice


Return to Top