Please select the Oklahoma license/exam that you are interested in purchasing reference books for.
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29 CFR OSHA 1926 Construction Industry Regulations & Standards, July 2026 Edition
$76.99View ProductMake compliance with dense government safety regulations simple with the 29 CFR 1926 OSHA Construction Industry Regulations. Updated through July 2026, the book provides you with a comprehensive set of the most up-to-date Construction regulations.
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Modern Refrigeration and Air Conditioning, 22nd Edition
$236.99View ProductThe Modern Refrigeration and Air Conditioning, 22nd Edition is the HVACR standard for a new generation of learners. It correlates to HVAC Excellence and PAHRA accreditation requirements to ensure complete coverage that prepares students for career success.
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ACCA Ductulator – Duct Calculation Slide Rule
$65.99View ProductOne of our most popular catalog items! This durable two-sided plastic sizing wheel comes with a complete instruction manual for residential and commercial duct-sizing procedures. Designed by Hank Rutkowski.
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NASCLA Contractors Guide to Business, Law and Project Management, BASIC 14th Ed Spiral-bound
$129.99View ProductNASCLA Contractors Guide to Business, Law and Project Management, BASIC Spiral-bound edition is designed to provide an overview of business management subjects for general contractor examination candidates applying for a license from the Maryland Licensing Board.
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Manual J Residential Load Calculation (8th Edition Version 2.50)
$174.99View ProductManual J 8th Edition Version 2.50 is the national ANSI-recognized standard for producing HVAC equipment sizing loads for single-family detached homes, small multi-unit structures, condominiums, town houses, and manufactured homes. A proper load calculation, performed in accordance with the Manual J 8th Edition procedure, is required by national building codes and most state and local jurisdictions.
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2018 International Mechanical Code (International Code Council Series) 1st Edition
$142.99View ProductThe 2018 International Mechanical Code (International Code Council Series) 1st Edition establishes minimum regulations for mechanical systems using prescriptive and performance-related provisions. The IMC was developed with broad-based principles that make possible the use of new materials, methods and design.
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2023 National Electrical Code – NFPA 70
$208.99View Product- The code you—and the world—depend on to keep pace with ever-evolving electrical hazards and challenges.
NFPA 70®, National Electrical Code® (NEC®), is the authoritative document addressing electrical installations in residential, commercial, and industrial settings. The NEC is revised every three years to stay in sync with industry practices, emerging trends, and the development and introduction of technologies to provide comprehensive rules for designers, installers, inspectors, engineers, electricians, and anyone else who works in the electrical industry. The code is organized for ease of use.
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2018 International Fuel Gas Code (International Code Council Series) 1st Edition
$131.99View ProductThe 2018 International Fuel Gas Code (IFGC), developed by the International Code Council (ICC), establishes minimum regulations for the design, installation, maintenance, and inspection of fuel gas systems. It applies to both residential and commercial buildings and aims to ensure safe and efficient use of natural gas and propane.
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NFPA 70: National Electrical Code (NEC) Paperback, 2017 Edition
$208.99View ProductThe code you—and the world—depend on to keep pace with ever-evolving electrical hazards and challenges.
NFPA 70®, National Electrical Code® (NEC®), is the authoritative document addressing electrical installations in residential, commercial, and industrial settings. The NEC is revised every three years to stay in sync with industry practices, emerging trends, and the development and introduction of technologies to provide comprehensive rules for designers, installers, inspectors, engineers, electricians, and anyone else who works in the electrical industry. The code is organized for ease of use.
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Manual N – Commercial Load Calculation for Small Commercial Buildings, 5th Edition
$142.99View ProductThe Manual N – Commercial Load Calculation for Small Commercial Buildings, 5th Edition, from the Air Conditioning Contractors of America (ACCA), details the correct HVAC load calculation procedure for small and midsize commercial buildings. This new edition addresses advances in the commercial construction industry, such as new materials, methods of assembly, and operational requirements. It provides instruction to help contractors and designers satisfy new (and often conflicting) energy, ventilation, and comfort requirements. Manual N is divided into four sections providing both a quick procedure, and a more comprehensive procedure, based on the requirements of your application.
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Ugly’s Electrical References, 2026 Edition
$32.99View ProductUgly’s Electrical References, 2026 Edition is the essential on-the-job reference tool for electrical industry professionals.
The 2026 Edition provides the most pertinent, up-to-date information used by electricians, including updated NEC code and table change information; mathematical formulas; NEMA wiring configurations; conduit bending guide; ampacity and conduit fill information; transformer and control circuit wiring diagrams; and conversion tables.
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Mathematics for Plumbers and Pipefitters 8th Edition
$283.99View ProductNow in its 8th edition, Mathematics for Plumbers and Pipefitters delivers the essential math skills necessary in the plumbing and pipefitting professions.
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Basic Business Law Printed Tabs
$14.99View ProductPERMANENT TABS PACKAGE – This package includes permanent tabs for some references allowed to be used during the exam.
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Redi-Tag Permanent Tabs – 100 Blank Tabs
$25.99View ProductWhether you are taking an exam or just wanting to be able to quickly reference a topic, tabbing your books is your key. Redi-Tag permanent tabs are self-sticking and you can print on your laser printer in minutes or write directly on them. Made of heavy duty, durable plastic that won’t tear of curl. Input and format text using Windows® versions of Microsoft® Word and WordPerfect®. Actual size of tab 1-1/8″ x 1-1/4″. 100 tabs per pack.
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Redi-Tag Permanent Tabs – 375 Blank Tabs
$44.99View ProductRedi-Tag permanent tabs are self-sticking and you can print on your laser printer in minutes or write directly on them. Made of heavy duty, durable plastic that won’t tear of curl. Input and format text using Windows® versions of Microsoft® Word and WordPerfect®. Actual size of tab 1-1/8″ x 1-1/4″. 100 tabs per pack.
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2024 International Fuel Gas Code (International Code Council Series)
$131.99View ProductThe 2024 International Fuel Gas Code (IFGC) provides comprehensive regulations for the design, installation, and inspection of fuel gas systems and gas-fired appliances in buildings. It aims to ensure safety, efficiency, and compliance with modern standards in fuel gas applications.
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Oklahoma Business Law Online Exam Prep Complete Package
$364.97View ProductThe Oklahoma Business and Law Exam course includes narrated highlighting guides, practice tests, theory, calculations, instructor support and test taking tips and strategies. Topics in The Oklahoma Business and Law Exam Review include bidding and estimating, contract management, liens, tax basics, insurance bonding, scheduling and project management, employee relations, financial management and more. The highlighting guides and quizzes are designed to familiarize students with testing materials. We do not provide students with exact test questions, as the state does not release this information.
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2024 International Mechanical Code (International Code Council Series)
$131.99View ProductThe 2024 International Mechanical Code (IMC) sets modern, standardized regulations for the design, installation, and maintenance of mechanical systems in residential and commercial buildings. Published by the International Code Council (ICC), it covers HVAC systems, ventilation, refrigeration, combustion air, ductwork, and equipment safety. The 2024 edition includes updates for new refrigerants, indoor air quality, leak detection, and emerging technologies, ensuring safer and more energy-efficient mechanical systems aligned with current industry practices.
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Oklahoma HVACR (Limited) Exam – Complete Tab Pack
$79.99View ProductPERMANENT TABS PACKAGE – This package includes state approved permanent tabs for all references allowed to be used during the exam.
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Oklahoma Unlimited Electrical License (Contractor, Journeyman) Tab Pack
$49.99View ProductThe Oklahoma Unlimited Electrical License (Contractor, Journeyman) Tab Pack includes tabs for the references used during the exam.
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Oklahoma HVACR (Limited) Online Exam Prep Complete Package
$1,479.91View ProductThe Oklahoma HVACR Exam Prep complete package includes all reference included in the exam, pre-printed tabs to for quick reference and Exam Prep to help you study and come familiar with the materials. The course includes narrated highlighting guides, practice tests, theory, calculations, instructor support and test-taking tips and strategies. The highlighting guides and quizzes are designed to familiarize students with testing materials. We do not provide students with exact test questions, as the state does not release this information.
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Oklahoma Unlimited Electrical License (Contractor, Journeyman) Online Exam Prep Complete Package
$665.95View ProductPassing the Business and Law Exam is required to be licensed and you are required to have prior approval from the State Board before testing. We offer review for the exam in an online format. The online practice tests includes hundreds of questions and covers key concepts that you will be tested on. The highlighting guides and quizzes are designed to familiarize students with testing materials. We do not provide students with exact test questions, as the state does not release this information.
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2024 International Plumbing Code (International Code Council Series)
$131.99View ProductThe 2024 International Plumbing Code (IPC) provides comprehensive regulations for the design, installation, and inspection of plumbing systems in buildings. It aims to safeguard public health, safety, and welfare by ensuring sanitary and efficient plumbing practices.
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Oklahoma Plumbing and Natural Gas Exam Tab Pack
$49.99View ProductThe Oklahoma Plumbing and Natural Gas Exam Tab Package includes references used during the exam.
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Oklahoma Plumbing and Natural Gas Online Exam Prep Complete Package
$971.94View ProductThe Oklahoma Plumbing and Natural Gas Exam Prep topics include Isometrics, Calculations, Plumbing, Cutting and Notching, Gas Pipe Sizing and Safety. The course includes narrated highlighting guides, practice tests, theory, calculations, instructor support and test-taking tips and strategies.@HomePrep is a National Leader in online education. With over 100,000 satisfied students and a course catalog of over 1,000 classes, we are here to help you – Invest in Yourself. The highlighting guides and quizzes are designed to familiarize students with testing materials. We do not provide students with exact test questions, as the state does not release this information.
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Oklahoma HVAC Tab Pack
$63.99View ProductPERMANENT TABS PACKAGE – This package includes permanent tabs for some references allowed to be used during the exam.
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Arkansas Class A HVACR Online Exam Prep Complete Package
$1,261.93View ProductOur complete package includes all references used to study for the exam, pre-printed tabs for only those references allowed to be brought into the exam center, and 365 days access to our online exam prep course. The highlighting guides and quizzes are designed to familiarize students with testing materials. We do not provide students with exact test questions, as the state does not release this information. @HomePrep is a National Leader in online education. With over 100,000 satisfied students and a course catalog of over 1,000 classes, we are here to help you – Invest in Yourself.
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Oklahoma Refrigeration (Contractor/Journeyman) Online Exam Prep Complete Package
$778.95View ProductThe Oklahoma Refrigeration (Contractor/Journeyman) Exam Prep Complete Package includes all references material used during the exam along with tabs for all references allowed into the exam and 365 days access to our online exam prep course. The highlighting guides and quizzes are designed to familiarize students with testing materials. We do not provide students with exact test questions, as the state does not release this information. @HomePrep is a National Leader in online education. With over 100,000 satisfied students and a course catalog of over 1,000 classes, we are here to help you – Invest in Yourself.
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Oklahoma HVACR (Unlimited) Exam – Complete Tab Pack
$79.99View ProductPERMANENT TABS PACKAGE – This package includes state approved permanent tabs for all references allowed to be used during the exam.
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Oklahoma HVACR (Unlimited) Online Exam Prep Complete Package
$1,447.91View ProductThe Oklahoma HVACR Exam Prep complete package includes all reference included in the exam, pre-printed tabs to for quick reference and Exam Prep to help you study and come familiar with the materials. The course includes narrated highlighting guides, practice tests, theory, calculations, instructor support and test-taking tips and strategies. The highlighting guides and quizzes are designed to familiarize students with testing materials. We do not provide students with exact test questions, as the state does not release this information.
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Arkansas Class B HVACR Online Exam Prep Complete Package
$1,551.92View ProductOur complete package includes all references used to study for the exam, pre-printed tabs for only those references allowed to be brought into the exam center, and 365 days access to our online exam prep course. The highlighting guides and quizzes are designed to familiarize students with testing materials. We do not provide students with exact test questions, as the state does not release this information. @HomePrep is a National Leader in online education. With over 100,000 satisfied students and a course catalog of over 1,000 classes, we are here to help you – Invest in Yourself.
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Oklahoma Limited Residential Journeyman (Mechanical) Online Exam Prep Course Only
$296.99View ProductThe Oklahoma Limited Residential Journeyman (Mechanical) Online Exam Prep course includes narrated highlighting guides, practice tests, theory, calculations, instructor support and test-taking tips and strategies. Topics include Duct Systems, Vents, Insulation, Combustion Air, Piping and more. The highlighting guides and quizzes are designed to familiarize students with testing materials. We do not provide students with exact test questions, as the state does not release this information.
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Oklahoma Roofing Contractor Online Exam Prep Complete Package
$1,996.91View ProductThe Oklahoma Roofing Contractor Online Exam Prep Complete Package includes all references used during the exam, pre-printed tabs for all references allowed into the exam and 365 days access to our online exam prep course. The highlighting guides and quizzes are designed to familiarize students with testing materials. We do not provide students with exact test questions, as the state does not release this information.
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Oklahoma Residential Electrical License (Contractor, Journeyman) Exam Prep Tab Pack
$31.99View ProductPERMANENT TABS PACKAGE – This package includes permanent tabs for ALL references allowed to be used during the exam
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Oklahoma Plumbing Tab Pack
$42.99View ProductPERMANENT TABS PACKAGE – This package includes permanent tabs for all references allowed to be used during the exam.
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Oklahoma Limited Residential Journeyman (Mechanical) Online Exam Prep Complete Package
$538.97View ProductThe Oklahoma Limited Residential Journeyman (Mechanical) Online Exam Prep Complete Package includes all references used to study for the exam, pre-printed tabs for only those references allowed to be brought into the exam center, and 365 days access to our online exam prep course. The highlighting guides and quizzes are designed to familiarize students with testing materials. We do not provide students with exact test questions, as the state does not release this information. @HomePrep is a National Leader in online education. With over 100,000 satisfied students and a course catalog of over 1,000 classes, we are here to help you – Invest in Yourself.
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Oklahoma Process Piping Journeyman Online Exam Prep Complete Package
$398.97View ProductThe Oklahoma Process Piping Journeyman Exam Prep Complete Package includes all references used during the exam and approved tabs for the references along with 365 days access to our online exam prep. The highlighting guides and quizzes are designed to familiarize students with testing materials. We do not provide students with exact test questions, as the state does not 2021 International Plumbing Code (International Code Council Series) 1st Edition – @HomePrep – Trades (athomeprep.com) release this information.
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Oklahoma Residential Electrical License (Contractor, Journeyman) Online Exam Prep Complete Package
$647.95View ProductThe Oklahoma Residential Electrical License (Contractor, Journeyman) Exam Prep Complete package includes all references used during the exam along with all tabs for those references allowed to be taken into the exam and 365 days access to our exam prep online course. The highlighting guides and quizzes are designed to familiarize students with testing materials. We do not provide students with exact test questions, as the state does not release this information. @HomePrep is a National Leader in online education. With over 100,000 satisfied students and a course catalog of over 1,000 classes, we are here to help you – Invest in Yourself.
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Oklahoma Natural Gas License (Journeyman, Contractor) Online Exam Prep Complete Package
$527.96View ProductThe Oklahoma Natural Gas License (Journeyman/Contractor) Online Exam Prep Complete Package includes all references used during the exam, pre-printed tabs for all references allowed into the exam and 365 days access to our online exam prep course. The highlighting guides and quizzes are designed to familiarize students with testing materials. We do not provide students with exact test questions, as the state does not release this information.
