About This Book
Oklahoma Administrative Code (OAC) Title 158, Chapter 50 contains the Mechanical Industry Regulations enforced by the Oklahoma Construction Industries Board (CIB). These regulations establish the official rules governing licensing, trade experience, apprenticeship programs, and operational standards for mechanical, HVAC, and refrigeration professionals throughout the state.
Core Rules and Structure
The chapter is organized into several subchapters, each addressing a distinct aspect of daily industry operations:
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General Provisions: Establishes definitions and scope for mechanical work, including heating, cooling, and refrigeration systems.
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Licensing Types and Limits: Defines the roles and responsibilities of apprentices, journeymen, and contractors, along with applicable restrictions — such as the requirement that a contractor operate under only one primary firm.
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Qualifications and Experience: Outlines approved educational pathways and the verifiable work hours required to qualify for licensure testing — for example, a journeyman candidate must demonstrate three years or 6,000 hours of relevant experience.
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Vehicle and Advertising Display: Requires mechanical contractors to prominently display their name and Oklahoma state license number on service vehicles and in promotional bids.
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Violations and Discipline: Details the conditions and procedures governing license suspension, revocation, and other consequences for illegal or prohibited conduct.
Practice Tests Using This Book
This book is required or recommended for 2 licensing exams. We've written 19 practice questions directly from this material, each one citing the chapter and section it comes from.