Oklahoma Plumbing and Natural Gas Contractor Highlighted & Tabbed Book Package

Prepare for the Oklahoma Plumbing Contractor and Natural Gas examination with a highlighted and tabbed book package built around the primary technical references used for this Oklahoma contractor licensing exam. This package is designed for candidates who want organized physical books for studying plumbing systems, natural gas piping, code calculations, jobsite safety, and other technical subjects covered by the examination.

The package includes the International Plumbing Code, 2018, the International Fuel Gas Code, 2018, Mathematics for Plumbers and Pipefitters, 8th Edition, and the Code of Federal Regulations - 29 CFR Part 1926 (OSHA).

The books are highlighted and tabbed to support organized study and faster reference navigation. For an open-book contractor examination, becoming familiar with the books before test day can be an important part of preparation. Candidates should practice identifying the correct reference, locating applicable chapters and tables, and applying code information under timed conditions.

This package provides a structured starting point for candidates studying plumbing code requirements, fuel gas systems, calculations, and construction safety. Rather than beginning with completely unorganized references, candidates can work directly with highlighted and tabbed materials while developing familiarity with important sections.

Please allow up to 15 business days for highlighted and tabbed book package orders.

What You Get

• International Plumbing Code, 2018
• International Fuel Gas Code, 2018
• Mathematics for Plumbers and Pipefitters, 8th Edition
• Code of Federal Regulations - 29 CFR Part 1926 (OSHA)
• Highlighted Books: Important material is highlighted to support focused review and exam preparation.
• Tabbed Books: Permanent tabs help organize major sections and support faster reference navigation.

The highlighted and tabbed format is intended to help candidates become more comfortable working directly with the exam references. Regular use of the books during preparation can make it easier to recognize where code provisions, sizing tables, calculations, and safety requirements are located.

Exam Details

The Oklahoma Plumbing Contractor and Natural Gas examination tests knowledge related to the installation, repair, maintenance, and extension of plumbing systems, including sanitary drainage, waste and vent systems, water supply, plumbing fixtures, roof drains, gas piping, appliances, vents, flues, tanks, and related appurtenances.

The examination contains 85 questions. Candidates are allowed 180 minutes to complete the test. The required passing score is 75%, which corresponds to 64 correct answers.

The examination is divided into the following major content areas:

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

Vents represent the largest individual subject area on the examination. Candidates should also dedicate substantial study time to general plumbing knowledge, water supply, drains and sewers, and fuel gas, since each of these areas accounts for 10 questions.

General plumbing knowledge can include head pressure, pipe joints, solvent-welded pipe joints, calculations of area and volume, water-supply friction loss, permits and inspections, job costs, structural penetrations, fire integrity, pipe system testing, excavation, backfill, and fitting identification.

Piping questions may involve PVC, CPVC, galvanized piping, copper tubing, copper piping, polyethylene, PEX, underground piping, cast iron, steel piping, connecting dissimilar materials, valves, and control valves.

The exam also covers plumbing fixtures, water distribution, potable water protection, backflow, drains, building sewers, cleanouts, sewage ejectors, sump pumps, health-care plumbing, waste piping, storm drainage, vents, traps, interceptors, indirect waste, special waste, and isometric drawings.

Open Book Test

The Oklahoma Plumbing Contractor and Natural Gas examination is an open-book test. Candidates may use approved reference materials during the examination.

The approved technical references include the International Plumbing Code, 2018 with applicable Oklahoma revisions, the International Fuel Gas Code, 2018 with applicable Oklahoma revisions, Mathematics for Plumbers and Pipefitters, 8th Edition, and applicable 29 CFR Part 1926 OSHA construction regulations.

Approved references may be highlighted, underlined, and indexed before the examination session. Permanent tabs are allowed. Temporary tabs such as Post-it notes are not permitted. References may not contain written notes added before or during the examination.

Because the examination is open book, reference familiarity should be part of every study plan. Candidates have 180 minutes for 85 questions, so there is limited time to search through unfamiliar books. A better approach is to identify the subject first, determine which reference contains the information, and then navigate directly toward the applicable section or table.

Use the highlighted and tabbed books throughout preparation. Repeatedly working with the same references can help candidates become more familiar with chapter locations, plumbing tables, fuel gas provisions, calculation methods, and OSHA safety standards.

Licensing Steps

1. Gain qualifying plumbing experience. Oklahoma plumbing contractor applicants must meet the applicable experience requirements established for plumbing licensing.
2. Meet journeyman-level qualifications. Contractor applicants must satisfy the qualification requirements applicable to an Oklahoma plumbing journeyman.
3. Complete additional contractor experience. Oklahoma contractor applicants must obtain the additional plumbing trade experience required for the contractor level.
4. Apply for the plumbing contractor license. Plumbing licensing is administered through the Oklahoma Construction Industries Board.
5. Receive examination eligibility. The applicant must be approved before scheduling the required contractor examinations.
6. Prepare for the Plumbing Contractor and Natural Gas examination. Study plumbing systems, fuel gas, calculations, safety, and code-navigation skills using the approved references.
7. Complete the required examinations. Candidates must satisfy Oklahoma's testing requirements for contractor licensing.
8. Complete active contractor requirements. After meeting the examination requirements, candidates must satisfy applicable state requirements for active contractor status.

State Requirements

Oklahoma plumbing contractor applicants must meet the qualification requirements applicable to a plumbing journeyman and complete an additional one year of plumbing trade experience for the contractor level.

Journeyman-level applicants must meet Oklahoma's age and qualifying experience requirements. Approved plumbing education may be used toward a portion of the experience requirement when it meets the state's applicable standards.

Oklahoma plumbing work is regulated through the Construction Industries Board, and installation standards are based on the plumbing codes adopted and modified for use in Oklahoma. The state's current plumbing regulations recognize the International Plumbing Code and International Fuel Gas Code as part of the installation standards for unlimited journeyman plumbers and unlimited plumbing contractors.

Once the required contractor examinations are completed, an Oklahoma contractor license remains inactive until the required bond and insurance documentation is provided.

An active Oklahoma plumbing contractor is required to maintain a $5,000 corporate surety bond payable to the Oklahoma Construction Industries Board. The bond must meet the state's applicable requirements and be maintained for active contractor status.

Active plumbing contractors must also provide evidence of at least $50,000 in commercial general liability insurance. Maintaining current insurance and bond coverage is an ongoing responsibility associated with an active Oklahoma contractor license.

Contractor candidates should understand that passing an examination is one part of licensing. Operating as a contractor also involves ongoing compliance with Oklahoma licensing rules, supervision requirements, insurance provisions, safety responsibilities, and other applicable regulations.

Reference Books

• Included Book: International Plumbing Code, 2018
  This primary plumbing reference addresses plumbing fixtures, water supply, sanitary drainage, vents, traps, interceptors, storm drainage, piping materials, installation methods, testing, and other requirements affecting plumbing systems. Candidates should become comfortable locating code sections, definitions, and tables that relate to the examination outline.
• Included Book: International Fuel Gas Code, 2018
  This technical reference addresses fuel gas piping systems, pipe sizing, materials, regulators, supports, joints, valves, outlets, appliances, combustion air, vents, testing, inspection, and other fuel gas requirements. It supports preparation for the fuel gas portion of the contractor examination.
• Included Book: Mathematics for Plumbers and Pipefitters, 8th Edition
  This reference supports mathematical applications encountered in plumbing and pipefitting work. Candidates can use it when reviewing measurements, area and volume calculations, piping mathematics, and other numerical concepts relevant to plumbing exam preparation.
• Included Book: Code of Federal Regulations - 29 CFR Part 1926 (OSHA)
  This federal construction safety reference contains OSHA standards applicable to construction work. It supports preparation for safety questions involving personal protective equipment, excavation, ladders, scaffolds, tools, employee protection, workplace illumination, hazardous materials, fall protection, and other jobsite safety subjects.

The books in this package are highlighted and tabbed to help candidates organize their review. Candidates should still practice with the books regularly so they understand what information is located in each section and when a particular reference should be used.

Exam Room Approved Books

• International Plumbing Code, 2018
  The 2018 edition, with applicable Oklahoma revisions, is listed as an allowed reference for the Oklahoma Plumbing Contractor and Natural Gas examination.
• International Fuel Gas Code, 2018
  The 2018 edition, with applicable Oklahoma revisions, is listed as an allowed reference for the fuel gas portion of the examination.
• Mathematics for Plumbers and Pipefitters, 8th Edition
  This mathematics reference is listed among the materials allowed for the examination.
• Code of Federal Regulations - 29 CFR Part 1926 (OSHA)
  The applicable OSHA construction regulations are listed among the allowed examination references.

Candidates are responsible for bringing their approved references to the examination center. Preparing with the same references before test day can help candidates become more comfortable locating tables, formulas, technical provisions, and safety requirements during an open-book exam.

Test Information and Study Materials

A strong preparation plan for the Oklahoma Plumbing Contractor and Natural Gas examination should divide study time according to the major exam categories while including regular reference-navigation practice.

General plumbing knowledge should include calculations, permits, inspections, testing, excavation, backfill, structural considerations, and common piping terminology. Use the International Plumbing Code and mathematics reference together when practicing questions that combine code requirements with calculations.

Piping, valves, and control valves require familiarity with several different piping materials. Review PVC, CPVC, galvanized pipe, copper tubing, copper pipe, polyethylene, PEX, cast iron, steel, and underground piping. Candidates should understand basic connection methods, material limitations, and requirements for joining dissimilar materials.

Water supply preparation should include water distribution systems, potable water protection, and backflow. Candidates should learn how to locate applicable sizing and protection requirements efficiently within the plumbing code.

Drains and sewers include building drains, building sewers, cleanouts, sewage ejectors, sump pumps, waste piping, health-care plumbing, and storm drainage. These subjects account for a significant portion of the exam and should receive regular review.

Vents represent the largest individual exam category. Candidates should focus on vent installation and developed length while becoming familiar with the code provisions that regulate plumbing vent systems.

Isometric analysis requires candidates to interpret plumbing isometric drawings and apply system knowledge. Review drawing relationships carefully and use mathematics practice when dimensions or calculations are involved.

Fuel gas accounts for 10 questions. Study gas distribution pipe sizing, regulators, hangers and supports, direction changes, concealed locations, joints, valves, outlets, sediment traps, appliances, combustion air, chimneys, vents, permits, inspection, testing, and piping material requirements.

Pipe sizing should receive dedicated practice. Instead of attempting to memorize complete tables, learn how to identify the correct table, determine the necessary variables, and apply the information to the conditions presented in the question.

Safety preparation should include OSHA construction standards involving personal protective equipment, excavation safety, trench protection, safety training, ventilation, first aid, signs and barricades, tools, ladders, workplace illumination, scaffolds, toxic materials, cleanup, material safety information, handling and storage, and fall protection.

Timed practice is useful because candidates have 180 minutes for 85 questions. Some questions may require only a short amount of time, while calculations, code searches, and isometric analysis may take longer. Candidates should practice moving efficiently through straightforward questions so additional time is available for more involved items.

Develop a consistent lookup strategy during practice. Identify the subject first, select the appropriate reference, locate the correct chapter or section, and then confirm the answer. Repeating this process helps turn reference navigation into a familiar part of exam preparation.

How 1 Exam Prep Helps You Reach Your Goal

1 Exam Prep supports Oklahoma Plumbing and Natural Gas Contractor candidates through organized study guidance, trade-focused review, practice-oriented preparation, reference navigation, and a structured approach to contractor exam preparation.

This highlighted and tabbed book package gives candidates an organized set of the primary technical references associated with the examination. Instead of beginning with completely unstructured materials, candidates can focus their preparation on understanding plumbing requirements, natural gas systems, mathematical applications, and construction safety.

1 Exam Prep encourages candidates to work directly with the references throughout their study period. Repeated use of the International Plumbing Code can help candidates become more comfortable with water supply, drainage, vents, fixtures, piping, traps, and other plumbing requirements.

The International Fuel Gas Code supports preparation for gas piping, sizing, regulators, appliances, combustion air, testing, and installation. The mathematics reference helps reinforce numerical skills that may be needed for plumbing calculations and isometric work, while OSHA 29 CFR Part 1926 supports construction safety review.

Practice-oriented preparation can help candidates identify weaker areas. Someone who needs additional work with vent systems can dedicate more study sessions to vent provisions. A candidate who struggles with fuel gas sizing can spend more time working with code tables and sample problems.

Reference navigation is also an important part of preparation. Highlighting and tabs can support faster movement through the books, but repeated practice is what helps candidates understand where information is located and which reference applies to a particular question.

The goal is to approach the Oklahoma Plumbing Contractor and Natural Gas examination with an organized study routine, stronger familiarity with the technical subjects, and practical experience using the reference materials available during the open-book exam.

Frequently Asked Questions

What books are included in the Oklahoma Plumbing and Natural Gas Contractor Highlighted & Tabbed Book Package?

The package includes the International Plumbing Code, 2018; International Fuel Gas Code, 2018; Mathematics for Plumbers and Pipefitters, 8th Edition; and Code of Federal Regulations - 29 CFR Part 1926 covering OSHA construction standards.

Are the books highlighted and tabbed?

Yes. The books are highlighted and tabbed to support organized study and faster reference navigation.

Is the Oklahoma Plumbing Contractor and Natural Gas exam open book?

Yes. The examination is open book and permits approved reference materials in accordance with examination-center rules.

How many questions are on the exam?

The Oklahoma Plumbing Contractor and Natural Gas examination contains 85 questions.

How much time is allowed?

Candidates are allowed 180 minutes to complete the examination.

What score is required to pass?

The required passing score is 75%, which corresponds to 64 correct answers.

What is the largest section of the exam?

Vents are the largest individual content area, with 13 questions.

Does the exam include natural gas questions?

Yes. Fuel gas accounts for 10 questions and includes topics such as pipe sizing, regulators, supports, joints, valves, outlets, appliances, combustion air, venting, testing, inspection, and piping materials.

Why is Mathematics for Plumbers and Pipefitters included?

The mathematics reference supports preparation for calculations involving measurements, area, volume, piping applications, and other numerical concepts relevant to plumbing work and exam preparation.

Why is OSHA 29 CFR Part 1926 included?

The examination includes construction safety questions, and OSHA 29 CFR Part 1926 contains standards relevant to excavation, PPE, ladders, scaffolds, tools, fall protection, and other jobsite hazards.

Can approved references be highlighted and tabbed?

Approved references may be highlighted, underlined, and indexed before the examination. Permanent tabs are permitted in accordance with examination rules.

How long should I allow for my highlighted and tabbed book package order?

Please allow up to 15 business days for highlighted and tabbed book package orders.