Okla. Stat. tit. 40, § 40-141.10: Examination of inspectors

A. The examination for chief boiler inspector, deputy

inspectors, special inspectors or owner-user inspectors, except

those owner-user inspectors within the scope of the American

Petroleum Institute Pressure Vessel Inspection Code, shall be

written and shall be held in accordance with the constitution and

bylaws of the National Board of Boiler and Pressure Vessel

Inspectors.

B. A written examination for owner-user inspectors within the

scope of the American Petroleum Institute Pressure Vessel Inspection

Code shall be administered by the Department of Labor based upon the

content of the American Petroleum Institute Pressure Vessel

Inspection Code and the American Society of Mechanical Engineers

Boiler and Pressure Vessel Codes pertaining to pressure vessels.