Oklahoma Plumbing and Natural Gas Contractor - Book Rental Package

Prepare for the Oklahoma Plumbing Contractor and Natural Gas examination with a comprehensive book rental package that combines plumbing code, fuel gas code, mathematics, construction safety, Oklahoma licensing law, contractor regulations, lien law, and business management references. This package is designed for candidates pursuing the Oklahoma plumbing contractor level who want access to the primary technical references and several important Business and Law references without purchasing the entire collection.

The package includes the 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), Oklahoma Plumbing License Law of 1955, Oklahoma Plumbing Industry Regulations, Oklahoma Fine Schedule of the Construction Industries Board, Oklahoma Lien Law, and the NASCLA Contractors Guide to Business, Law and Project Management, Basic 14th Edition.

All rental books are highlighted and tabbed to support organized study and faster reference navigation. Candidates can use the books throughout their preparation to become familiar with plumbing code requirements, fuel gas provisions, mathematical procedures, OSHA construction safety standards, Oklahoma licensing requirements, and contractor business principles.

The Oklahoma Plumbing Contractor and Natural Gas examination is open book, which makes familiarity with the technical references especially important. Candidates should practice identifying the correct book, locating the applicable chapter or table, and applying code information efficiently under timed conditions.

Exam Details

The Oklahoma Plumbing Contractor and Natural Gas technical examination tests knowledge involving the installation, repair, maintenance, and extension of plumbing systems along with natural gas piping and related systems.

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 technical examination is divided into the following major subject 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 portion of the examination. Candidates should also devote substantial study time to water supply, drains and sewers, general plumbing knowledge, and fuel gas because each of these areas represents a significant part of the exam.

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

The fuel gas portion includes subjects such as gas distribution pipe sizing, pressure regulators, hangers and supports, direction changes, concealed locations, joints and connections, valves, outlets, drip legs, sediment traps, appliances, confined spaces, combustion air, chimneys, vents, permits, inspection, testing, and piping material requirements.

Oklahoma plumbing contractor candidates also prepare for a separate Plumbing Business and Law examination. That exam contains 50 questions, allows 120 minutes, and requires a 75% passing score. Business and Law subjects include bidding and estimating, project management, contracts, financial management, labor and personnel, risk management, payroll and payroll taxes, and licensing requirements.

Open Book Test

The Oklahoma Plumbing Contractor and Natural Gas technical examination is an open-book test. Approved references may be brought into the examination center and used during testing.

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

The Oklahoma Plumbing Business and Law examination is also open book. Several of the Oklahoma statutes, regulations, lien materials, and NASCLA business references included in this rental package are used for Business and Law preparation.

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

Open-book testing makes efficient navigation important. Candidates should not plan to research every question from the beginning. Instead, build enough trade knowledge to recognize the subject first, identify the most appropriate reference, and then use the book to confirm detailed requirements when necessary.

Licensing Steps

1. Gain qualifying plumbing experience. Oklahoma plumbing contractor applicants must satisfy the experience requirements established for plumbing licensing.
2. Meet journeyman-level qualifications. Contractor applicants must first meet the same qualification requirements applicable to a plumbing journeyman.
3. Complete additional contractor experience. Oklahoma requires contractor applicants to have an additional year of plumbing trade experience beyond the journeyman qualification requirement.
4. Apply for the plumbing contractor license. Applications are handled through the Oklahoma Construction Industries Board.
5. Receive examination eligibility. Applicants must be approved before scheduling the required contractor examinations.
6. Prepare for the technical and Business and Law examinations. Study plumbing, natural gas, safety, business, licensing, financial, and contractor-management topics.
7. Complete the required examinations. Candidates must satisfy the applicable testing requirements for contractor licensing.
8. Complete active contractor requirements. After successful testing, applicable bond and insurance documentation must be provided for active contractor status.

State Requirements

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

Journeyman-level applicants must be at least 18 years old and have three years of qualifying plumbing trade experience while employed by a licensed plumbing contractor, equivalent qualifying military experience, or a qualifying current out-of-state plumbing license in good standing.

Approved plumbing education may substitute for a portion of the experience requirement. A qualifying associate degree or Career Tech plumbing program consisting of at least 1,000 classroom hours may substitute for two years of experience. A qualifying Career Tech plumbing program consisting of at least 500 classroom hours may substitute for one year of experience.

After successfully completing the applicable contractor examinations, the license remains inactive until Oklahoma receives the required bond and insurance documentation.

An active Oklahoma plumbing contractor must maintain a $5,000 corporate surety bond payable to the Oklahoma Construction Industries Board. The bond must be in the individual license holder's name.

An active plumbing contractor must also provide evidence of at least $50,000 in commercial general liability insurance. Maintaining current insurance is necessary for an active contractor license.

Oklahoma plumbing journeymen and contractors are also subject to applicable continuing education and license-renewal requirements. Contractor responsibilities extend beyond technical plumbing work and include compliance with licensing, supervision, advertising, contracts, safety, and other regulatory requirements.

Reference Books

• Included Rental Book: International Plumbing Code, 2018
  This primary plumbing code reference covers plumbing system requirements, fixtures, water supply, sanitary drainage, vents, traps, interceptors, storm drainage, piping materials, installation, testing, and related provisions. Candidates should practice locating code sections and tables connected to the examination outline.
• Included Rental Book: International Fuel Gas Code, 2018
  This technical reference addresses natural gas piping systems, materials, sizing, regulators, installation, testing, combustion air, vents, appliances, and related fuel gas requirements. It supports preparation for the fuel gas portion of the contractor examination.
• Included Rental Book: Mathematics for Plumbers and Pipefitters, 8th Edition
  This mathematics reference supports plumbing calculations involving measurements, area, volume, piping, offsets, and other numerical applications encountered in plumbing and pipefitting work.
• Included Rental Book: Code of Federal Regulations - 29 CFR Part 1926 (OSHA)
  This reference contains federal construction safety requirements. It supports review of subjects such as personal protective equipment, excavation, fall protection, ladders, scaffolds, tools, material handling, workplace hazards, and other construction safety responsibilities.
• Included Rental Book: Oklahoma Plumbing License Law of 1955, Oklahoma Statutes, Title 59, Chapter 27
  This Oklahoma-specific law establishes important requirements governing plumbing licensing and licensed plumbing work within the state. It supports contractor preparation for Oklahoma licensing and legal responsibilities.
• Included Rental Book: Oklahoma Plumbing Industry Regulations, Oklahoma Administrative Code, Title 158, Chapter 30
  This reference contains Oklahoma administrative regulations governing plumbing licenses, qualifications, contractor responsibilities, apprentices, compliance, and other plumbing industry requirements.
• Included Rental Book: Oklahoma Fine Schedule of the Construction Industries Board, Oklahoma Administrative Code, Title 158, Chapter 10
  This reference addresses fines administered by the Oklahoma Construction Industries Board and supports preparation involving regulatory compliance and enforcement.
• Included Rental Book: Oklahoma Lien Law, Oklahoma Statutes, Title 42, Chapter 3
  This Oklahoma law addresses construction lien provisions affecting contractors, subcontractors, suppliers, owners, and construction projects. Lien knowledge is relevant to contractor project-management responsibilities.
• Included Rental Book: NASCLA Contractors Guide to Business, Law and Project Management, Basic 14th Edition
  This contractor business reference covers bidding, estimating, project management, contracts, financial management, labor, risk management, insurance, bonds, payroll, taxes, and other business practices relevant to contractor licensing.

All rental books are highlighted and tabbed to support organized review and reference navigation. Use the books throughout the rental period so the layout, major sections, tables, and important provisions become familiar before test day.

Test Information and Study Materials

A strong preparation plan should divide study time between plumbing, natural gas, mathematics, safety, and contractor business topics. Begin with the examination outline and use the number of questions in each category to prioritize your review.

Vents deserve substantial attention because they represent 13 of the 85 technical examination questions. Review vent installation, developed length, sizing concepts, connections, and other applicable requirements.

Water supply and drains and sewers each account for 10 questions. Practice locating requirements for water distribution, protection of potable water, backflow, drain and sewer piping, cleanouts, sewage ejectors, sump pumps, health-care plumbing, waste piping, and storm drainage.

Fuel gas also accounts for 10 questions. Study gas distribution pipe sizing, regulators, hangers, joints, valves, outlets, sediment traps, appliances, combustion air, chimneys, vents, testing, inspections, and pipe materials.

Isometric analysis requires candidates to interpret isometric drawings and apply plumbing knowledge to system layouts. Mathematics practice can support this part of preparation, especially where measurements, offsets, dimensions, or calculations are involved.

The safety portion should be studied using the OSHA construction regulations. Review contractor responsibilities for employee protection, excavation safety, PPE, fall protection, ladders, scaffolds, tools, workplace illumination, toxic materials, hazard communication, and material handling.

Business and Law preparation should include bidding, estimating, project supervision, contracts, accounting and financial concepts, labor requirements, insurance, bonds, payroll taxes, licensing, liens, and Oklahoma-specific plumbing regulations.

Timed practice can help candidates become more comfortable with exam pacing. The technical exam allows 180 minutes for 85 questions, so efficient decision-making and reference navigation are important. Candidates should practice answering familiar questions promptly and reserving additional time for calculations and detailed code lookups.

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 rental package gives candidates access to a broad collection of technical and business references without requiring the full purchase of every included book. The highlighted and tabbed format supports a more organized study process and helps candidates become familiar with important sections throughout the rental period.

1 Exam Prep encourages candidates to combine code knowledge with practical reference navigation. Plumbing preparation should include water supply, drainage, vents, fixtures, piping, traps, isometric analysis, and general code requirements. Natural gas preparation should include sizing, regulators, piping materials, installation, testing, combustion air, and venting.

Contractor-level preparation should also include business responsibilities. Reviewing bidding, contracts, financial management, project supervision, lien law, licensing rules, insurance, and regulatory requirements helps candidates prepare for the broader responsibilities associated with contractor licensing.

Practice-oriented study can help identify weaker areas and create a more efficient study schedule. Candidates who need additional work with isometric drawings can dedicate more time to calculations and plan interpretation, while candidates who struggle with fuel gas sizing can focus on locating and applying the appropriate code tables.

The goal is to approach the Oklahoma Plumbing Contractor and Natural Gas examinations with stronger familiarity with the subject matter, an organized reference-navigation process, and a study structure built around the areas tested.

Frequently Asked Questions

What books are included in the Oklahoma Plumbing and Natural Gas Contractor Book Rental Package?

The package includes the 2018 International Plumbing Code, 2018 International Fuel Gas Code, Mathematics for Plumbers and Pipefitters 8th Edition, OSHA 29 CFR Part 1926, Oklahoma plumbing licensing and regulatory materials, Oklahoma Lien Law, and the NASCLA Contractors Guide.

Are the rental books highlighted and tabbed?

Yes. The rental 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 technical examination is open book and permits approved references in accordance with examination-center rules.

How many questions are on the technical exam?

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

How much time is allowed for the technical exam?

Candidates are allowed 180 minutes to complete the technical examination.

What score is required to pass?

The technical examination requires a 75% passing score, which corresponds to 64 correct answers.

Is there a separate Business and Law exam?

Yes. The Oklahoma Plumbing Business and Law examination contains 50 questions, allows 120 minutes, and requires a 75% passing score.

What is the rental cost?

The rental cost is $1,020, plus a $400 refundable deposit, for a total of $1,420.

How does the refundable deposit work?

The $400 deposit is refundable if the books are returned in similar condition within 6 months from the time they are received.

What technical topics should I study?

Study areas include general plumbing knowledge, piping and valves, fixtures, water supply, drains and sewers, vents, traps and interceptors, isometric analysis, fuel gas, and construction safety.

Why should I practice with the books before the exam?

Regular practice helps candidates learn where important code sections, tables, calculations, safety requirements, and regulations are located so reference navigation becomes more efficient.

How long should I allow for my rental package order?

Please allow up to 15 business days for book & course rental package orders.