Hawaii C-37 Plumbing Contractor Online Exam Prep Complete Package
Prepare for and pass this license exam. Guaranteed
Hawaii C-37 Plumbing Contractor Online Exam Prep Complete Package
The Hawaii C-37 Plumbing Contractor Online Exam Prep Course includes highlighting guides, practice quizzes, study tips, licensing information, and instructor support. Topics include General Knowledge, Fixtures and Fittings, Storm and Roof Drainage, Fuel Gas Systems, Safety OSHA, Water Supply and Distribution, Water Heaters, Sewer, Drain, Waste and Vent Systems and Excavation, Plumbing Math and Medical Gas . 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.
What’s Included in Our Courses
Everything you need to pass your exam on the first try.
Our courses are designed to help you become familiar with the references and allow you to find the information quickly as the exams are timed. We offer highlighting guides to draw attention to key points throughout the book and tabs (sold separately) to allow you to find key sections quickly. We encourage you to take the practice exams multiple times as the questions on the test change each time.
Resources for the Hawaii C-37 Plumbing Contractor License
Books and Tabs to use During the Exam
(Included in the Complete Package):
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Hawaii C-37 Plumbing Contractor Tab Pack
$34.99Add to cartPERMANENT TABS PACKAGE – This package includes permanent tabs for some of the references allowed to be used during the exam.
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Hawaii C-37 Plumbing Contractor Online Exam Prep Course Only
$296.99Add to cartThe Hawaii C-37 Plumbing Contractor Online Exam Prep Course includes highlighting guides, practice quizzes, study tips, licensing information, and instructor support. Topics include General Knowledge, Fixtures and Fittings, Storm and Roof Drainage, Fuel Gas Systems, Safety OSHA, Water Supply and Distribution, Water Heaters, Sewer, Drain, Waste and Vent Systems and Excavation, Plumbing Math and Medical Gas . 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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29 CFR OSHA 1926 Construction Industry Regulations & Standards, July 2026 Edition
$76.99Add to cartMake 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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2018 Uniform Plumbing Code
$153.99Add to cartThe 2018 edition of the Uniform Plumbing Code (UPC) represents the most current approaches in the plumbing field. It is the fourth edition developed under the ANSI Consensus process and is designated as an American National Standards by the American National Standards Institute (ANSI). Contributions to the content of this code were made by every segment of the built industry, including such diverse interests as consumers, enforcing authorities, installers/maintainers, labor, manufacturers, research/standards/ testing laboratories, special experts and users.
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2018 International Fuel Gas Code (International Code Council Series) 1st Edition
$131.99Add to cartThe 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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Mathematics for Plumbers and Pipefitters 8th Edition
$283.99Add to cartNow 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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As a busy contractor with multiple state licenses and needs, it is nice to find a valuable source that can help fulfill my obligations from testing prep to CEU requirements. The team at @HomePrep are very courteous and professional. I would recommend them for any and all license and training needs.
James V. - Colorado
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This course was very easy to follow. It was so convenient because I was able to do it at my own pace in my free time. I have a very busy schedule and did not have time to take a live course.
N. Amaya - Virginia
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Very informative, the reading out loud was a great help. I could work at my own pace. It’s the way to go for continuing education!
A. Nichols - Oklahoma
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I really like the fact that I can keep taking the tests over and over, and the questions keep changing.
T. Galbrath - Idaho
Hawaii C-37 Plumbing Contractor License
To install, repair, or alter complete plumbing systems which shall include supply water piping systems, hot water piping systems which includes, but is not limited to, heat pump water heaters, and hot water supply boilers with a heat input of 200,000 BTU/h or less, waste water piping systems, fuel gas piping systems, waste water treatment systems, and other fluid piping systems; the equipment, backflow prevention assemblies, instrumentation, non-electric controls, and the fixture for these systems and the venting for waste water piping systems and fuel gas piping systems; for any purpose in connection with the use and occupancy of buildings, structures, works, and premises where people or animals live, work, and assemble; including piping for vacuum, air, and medical gas systems, spas and swimming pools, lawn sprinkler systems, irrigation systems, sewer lines and related sewage disposal work performed within property lines, fire protection sprinkler systems when supervised by licensed mechanical engineers or licensed fire protection contractors, and solar hot water heating systems, and the trenching, backfilling, patching, and surface restoration in connection therewith.
Please view our Application Processing Services to streamline this process.
The Hawaii C-37 Plumbing Contractor License Exam is a closed book 180-minute exam that requires a 75% score to pass. To use your time efficiently in the exam, it is extremely helpful to prepare in-depth and have your book tabbed and highlighted prior to the exam. Highlighting, tabs and written notes in reference materials are permitted prior to arriving at the test site. However, during the exam you may not write in the reference materials.
To apply for your license, contact the Hawaii Board of Electricians and Plumbers at 808-586-3000 or visit Board Website.
| Number of Questions | 80 |
| Exam Time | 180 minutes |
| Pass Requirements | 75% |
| Open Book Allowed | No |
| Test Cost | $80 |
Exam Overview
The Hawaii C-37 Plumbing Contractor License Exam is a closed book 180-minute exam that requires a 75% score to pass. To use your time efficiently in the exam, it is extremely helpful to prepare in-depth and have your book tabbed and highlighted prior to the exam. Highlighting, tabs and written notes in reference materials are permitted prior to arriving at the test site. However, during the exam you may not write in the reference materials.
Exam Topics
- General Knowledge
- Fixtures and Fittings
- Storm and Roof Drainage
- Fuel Gas Systems
- Safety OSHA
- Water Supply and Distribution
- Water Heaters
- Sewer, Drain, Waste and Vent Systems and Excavation
- Plumbing Math
- Medical Gas
The exam is timed, and you will need to achieve a passing score to obtain your contractor’s license. Each state may have its own exam structure and content, so it’s essential to check with the state Board for Licensing Contractors or the relevant licensing authority for the most up-to-date information on the exam’s specific requirements.
Before taking the exam, it’s advisable to study relevant reference materials and gain practical experience in the construction field to increase your chances of success.
The Hawaii C-37 Plumbing Contractor Online Exam Prep Course includes highlighting guides, practice quizzes, study tips, licensing information, and instructor support. 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. Highlighting, tabs and written notes in reference materials are permitted prior to arriving at the test site. However, during the exam you may not write in the reference materials.
Related Books and Materials for This Course
The Hawaii C-37 Plumbing Contractor Online Exam is a closed book exam. To get the most out of our course, we also advise having a copy of the following materials:
- 2018 International Fuel Gas Code
- Mathematics for Plumbers and Pipefitters
- 29 CFR OSHA 1926 Construction Industry Regulations & Standards
- 2018 Uniform Plumbing Code
- Hawaii C-37 Plumbing Contractor Tab Pack
New and Gently Used versions of all reference materials
are available in our online store.
Reviews
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