Oklahoma Plumbing Journeyman and Gas | EXAMPREP.ORG

Oklahoma Plumbing Journeyman and Gas

Installation, repair and maintenance or extension of any plumbing system, including sanitary drainage waste and vents, water supply, plumbing fixtures and roof drains and also install, maintain, or repair gas piping, appliances, vents, flues, tanks and other related appurtenances in a supervised environment. The Journeyman must be employee of a Plumbing Contractor. A Journeyman may not contract.

$445.00

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Required Books 

The references listed below have been used to create the test questions and are used in our seminar to prepare you to better navigate these books and pass the exam.

Add All Required Books to Cart ($430.90)

Additional Services

Business and Law is not required for this license.

Applicants must submit a completed application to the state licensing board to obtain approval before testing.

Applicants must be at least 18 years old and must document at least 3 years of experience.

There are no state mandated minimum financial requirements for this license.

Installation, repair and maintenance or extension of any plumbing system, including sanitary drainage waste and vents, water supply, plumbing fixtures and roof drains and also install, maintain, or repair gas piping, appliances, vents, flues, tanks and other related appurtenances in a supervised environment. The Journeyman must be employee of a Plumbing Contractor. A Journeyman may not contract.

Fees must accompany the application.   The licensing fee is $75. ($50 for License & $25 for processing)

Applications are reviewed once per week. Wait time for approval should be minimal.

For license requirements and an application, contact:

State of Oklahoma
Construction Industries Board
2401 N.W. 23rd Street, Suite 5
Oklahoma City, OK 73107
405.271.5217
405.271.5254 fax

Important Contacts

Plumbing, Mechanical & Electrical construction are regulated at the state level.
For license requirements and an application, contact:

State of Oklahoma
Construction Industries Board
2401 N.W. 23rd Street, Suite 5
Oklahoma City, OK 73107
405.521.6550
405.521.6526 fax
877.484.4424
Oklahoma trade examinations are administered by:

PSI Licensure: Certification
3210 East Tropicana
Las Vegas, NV 89121
(800) 733-9267 phone
702.932.2666 fax


The Board may enter into a reciprocity agreement with another State if the requirements for licensure in the other State are deemed by the Board to be substantially the same or equivalent to the requirements for obtaining an original license by examination in this state.

Oklahoma requires that 6 hours of approved CE must be completed every 36 months (3 years). A licensee is exempt from these requirements for 3 years from the date he or she initially passes the current licensing exam.   As of July 1, 2014, no contractor or journeyman license shall be renewed unless 6 hours of Continuing Education, within the last 36 months (3 years), have been completed.  Thereafter, 6 hours of CE must be completed every 3 years (36 months).

The testing company is PSI. It is an open-book, timed test.

There are 80 questions and a 3-hour time limit. A score of at least 75% is required to pass the exam.

The test fee is $100.

Exam content includes Knowledge and Regulations, Piping, Valves, and Control Valves, Fixtures and Equipment, Water Supply, Drains and Sewers, Vents, Traps, Interceptors, Indirect & Special Waste, Isometric Analysis, Fuel Gas Safety.

American Contractors offers a 1-day seminar to prepare for the Oklahoma Plumbing Journeyman with Gas license.