Arizona Plumbing, Including Solar Residential Contractor (R-37) - Books & Courses Rental Package

Prepare for the Arizona Plumbing, Including Solar Residential Contractor (R-37) examination with a complete rental package that combines highlighted and tabbed reference books with structured online exam preparation. This package is designed for qualifying parties, residential plumbers, solar water-heating professionals, supervisors, business owners, and experienced tradespeople pursuing the Arizona R-37 contractor classification.

The Arizona R-37 examination covers residential plumbing systems and related solar applications. Candidates may need to work through questions involving water and gas piping, drainage, waste and vent systems, plumbing fixtures, water heaters, mechanical equipment, fire-protection systems, onsite wastewater treatment, construction safety, boilers, hydronic heating, pipe-trade mathematics, excavation, solar water heating, and solar pool heating.

Every rental book included with this package is highlighted and tabbed. The highlighting draws attention to selected definitions, provisions, formulas, tables, and technical information, while the tabs create visible navigation points throughout the references. This preparation helps students spend more time reviewing the material and practicing open-book navigation instead of organizing each book from the beginning.

The package also includes 6 months of course access. The course provides an organized preparation structure for reviewing major trade subjects, working through calculations, improving code-book navigation, and practicing how to connect exam questions with the correct references. Students can use the course and rental books together throughout the preparation period.

This Books & Courses Rental Package is suited to candidates who want a coordinated exam-preparation system without purchasing every reference individually. The included materials support focused study across residential plumbing, solar thermal systems, fuel gas, mechanical work, sprinkler installation, wastewater, OSHA safety, hydronic heating, boilers, and related trade knowledge.

Exam Details

The Arizona Plumbing, Including Solar Residential Contractor R-37 examination evaluates knowledge associated with residential plumbing systems, related mechanical work, fire protection, sewage treatment, construction safety, and solar applications. The classification includes the installation and repair of water and gas piping systems, fire-protection systems, sewage treatment systems, fixtures, vents, devices common to the plumbing industry, and applicable solar work.

The R-37 trade examination contains 100 questions. Candidates are allowed 240 minutes to complete the examination, and a minimum score of 70 percent is required to pass.

Exam preparation may involve drainage, waste and vent systems, water distribution, plumbing fixtures, water heaters, backflow prevention, roof drains, storm drainage, indirect waste, specialty plumbing, interceptors, traps, isometric analysis, fuel gas systems, septic and sewer systems, fire sprinklers, excavation, boilers, hydronic heating, and solar thermal applications.

Questions may require candidates to interpret definitions, identify installation requirements, use code tables, select materials, evaluate piping arrangements, recognize safe work practices, perform trade calculations, or determine which reference applies to a specific residential condition.

Solar-related subjects may involve solar water-heating systems, solar pool heating, collectors, storage, system piping, circulation, pumps, controls, heat transfer, installation practices, operation, and maintenance. Candidates should understand how solar thermal work connects with plumbing, mechanical, hydronic, and safety requirements.

Strong preparation includes learning the purpose of every reference. Candidates should practice recognizing the subject of a question before beginning a search. Selecting the correct book quickly can reduce unnecessary navigation and provide more time for interpreting requirements and completing calculations.

Open Book Test

The Arizona R-37 trade examination is an open-book test. Approved reference materials may be used during the examination under the current testing rules.

Open-book testing does not eliminate the need for preparation. The R-37 reference library contains multiple codes, standards, technical manuals, and trade publications. Candidates who are unfamiliar with the books may spend too much time searching for individual answers.

The highlighted and tabbed rental books help create a more organized navigation system. Tabs provide visual markers for major chapters and subjects, while highlighting helps selected information stand out during review. Students should use the books regularly throughout their 6 months of course access so the location and organization of important material become familiar.

Effective navigation begins by identifying the subject of the question. Water supply, drainage, venting, fixtures, traps, and water-heater questions may lead to the International Plumbing Code. Gas piping, appliance connections, regulators, combustion air, and venting may require the International Fuel Gas Code. Mechanical-system questions may require the International Mechanical Code.

Fire sprinkler questions may involve NFPA 13, NFPA 13D, or NFPA 13R. Candidates should understand the scope of each standard so they can select the appropriate reference based on the occupancy and sprinkler system described.

Students should practice using tables of contents, indexes, definitions, chapter headings, technical tables, formulas, diagrams, exceptions, footnotes, appendices, and cross-references. Reading the surrounding language is important because exceptions or qualifications may affect how a provision applies.

Reference materials and book preparation must comply with the testing provider’s current rules. Candidates should review the current examination bulletin before reporting for the test.

Licensing Steps

Begin by reviewing the Arizona contractor classifications and confirming that the R-37 Plumbing, Including Solar residential classification matches the work the applicant or business intends to perform. Arizona separates residential, commercial, and dual contractor classifications, so applicants should select the classification that fits their intended scope.

Identify the qualifying party for the license. The qualifying party is responsible for satisfying the experience, knowledge, and examination requirements associated with the requested classification and maintaining the required relationship with the applicant business.

Complete the required R-37 trade examination unless an authorized waiver applies. The qualifying party may also need to complete the applicable Arizona Statutes and Rules requirement as part of the contractor licensing process.

Complete the required background checks and gather the documentation associated with the applicant’s business structure. Arizona contractor licenses may be issued to eligible sole proprietorships, partnerships, limited liability companies, corporations, and other approved entities.

Obtain the required contractor bond and prepare the supporting application materials. These may include identification, entity records, qualifying-party information, examination results, experience documentation, background-check records, bond paperwork, disclosures, and signed application forms.

Because the R-37 classification includes solar work, applicants must submit the applicable solar warranty documentation with the contractor license application.

Submit the completed application to the Arizona Registrar of Contractors. The agency reviews the information and supporting documents before determining whether the license can be issued. Passing the trade examination is one part of the licensing process and does not automatically grant the contractor license.

State Requirements

Arizona contractor licenses are administered by the Arizona Registrar of Contractors. Applicants must satisfy the requirements connected with the requested classification, qualifying party, relevant experience, required examinations or approved waivers, background checks, contractor bond, business records, and application documentation.

The R-37 classification applies to residential plumbing, including solar work, within the scope assigned to the classification. It should not automatically be treated as authorization for commercial plumbing or work outside the permitted residential scope.

The qualifying party should have experience relevant to the plumbing and solar work covered by the classification. Applicants should maintain clear records describing employment, projects, supervisory duties, installation work, repair responsibilities, and hands-on trade experience.

Business names, ownership information, identification records, bond documents, background-check materials, and qualifying-party details should remain consistent throughout the application. Missing or conflicting information may delay the review process.

Applicants pursuing a classification that includes solar work must provide the required solar warranty documentation. Current forms and application instructions should be used when preparing the license submission.

Reference Books

• Included Rental Book: Code of Federal Regulations - 29 CFR Part 1926 (OSHA)
  A highlighted and tabbed construction-safety reference covering excavation, ladders, scaffolds, personal protective equipment, fall protection, electrical hazards, material handling, and jobsite practices.
• Included Rental Book: International Fuel Gas Code, 2018
  A highlighted and tabbed code addressing fuel gas piping, system sizing, appliance connections, regulators, shutoff valves, combustion air, venting, testing, and installation requirements.
• Included Rental Book: International Mechanical Code, 2018
  A highlighted and tabbed code covering mechanical equipment, ventilation, exhaust, combustion air, hydronic systems, appliances, and related installations.
• Included Rental Book: International Plumbing Code, 2018
  A highlighted and tabbed code covering plumbing fixtures, water distribution, sanitary drainage, vents, traps, storm drainage, indirect waste, water heaters, materials, inspections, and testing.
• Included Rental Book: NFPA 13: Installation of Sprinkler Systems, 2019
  A highlighted and tabbed standard addressing automatic sprinkler-system components, installation, piping, water supplies, inspection, and testing.
• Included Rental Book: NFPA 13D - Installation of Sprinkler Systems in One- and Two-Family Dwellings and Manufactured Homes, 2019
  A highlighted and tabbed standard focused on sprinkler systems for one- and two-family dwellings and manufactured homes.
• Included Rental Book: NFPA 13R - Sprinkler Systems for Residential Occupancies up to and Including Four Stories in Height, 2019
  A highlighted and tabbed standard covering qualifying residential sprinkler systems, components, installation, and water-supply provisions.
• Included Rental Book: On-site Wastewater Treatment Facility Provisions in Unified Water Quality Permit Rule, Arizona Administrative Code Title 18, Chapter 9, 2006
  A highlighted and tabbed Arizona reference containing provisions related to onsite wastewater treatment facilities and disposal systems.
• Included Rental Book: Mathematics for Plumbers and Pipefitters, 8th Edition
  A highlighted and tabbed mathematics resource covering measurements, conversions, areas, volumes, offsets, angles, slopes, pressure, capacity, and pipe-trade calculations.
• Included Rental Book: IPT’s Pipe Trades Handbook, Robert A. Lee, 2016
  A highlighted and tabbed handbook providing formulas, tables, fitting information, measurements, layout guidance, materials, and practical pipe-trade data.
• Included Rental Book: Boiler Operator’s Guide, 5th Edition
  A highlighted and tabbed technical guide covering boiler components, controls, combustion, operation, maintenance, water treatment, safety, and troubleshooting.
• Included Rental Book: Arizona 811 - Arizona Blue Stake Brochure
  A prepared Arizona reference covering underground utility location, safe-digging procedures, excavation planning, and damage prevention.
• Included Rental Book: Modern Hydronic Heating for Residential and Light Commercial Buildings, John Siegenthaler, P.E., 2022
  A highlighted and tabbed reference covering hydronic system design, boilers, piping arrangements, heat emitters, circulators, controls, zoning, radiant heating, and system performance.
• Included Rental Book: Solar Water and Pool Heating Design and Installation Manual
  A highlighted and tabbed solar thermal reference covering collectors, storage, piping, circulation, controls, system design, solar water heating, pool heating, installation, operation, and maintenance.

Test Information and Study Materials

Use the 6 months of course access to create a consistent preparation schedule. Begin with core plumbing subjects such as drainage, waste and vent systems, water distribution, fixtures, traps, water heaters, storm drainage, indirect waste, and backflow prevention.

Review fuel gas subjects including system demand, pipe sizing, appliance connections, regulators, shutoff valves, combustion air, venting, and testing. Mechanical preparation should include equipment, ventilation, exhaust, hydronic systems, appliances, and related residential installations.

Compare NFPA 13, NFPA 13D, and NFPA 13R. Practice determining which standard applies based on the building, occupancy, and sprinkler system described in the question.

Safety preparation should include excavation, access and egress, protective systems, spoil placement, ladders, scaffolds, personal protective equipment, fall protection, electrical hazards, and underground utility-location practices.

Practice calculations involving measurements, conversions, areas, volumes, offsets, slopes, pressure, capacity, flow, pipe sizing, and system performance. Review boiler and hydronic heating subjects such as heat transfer, circulation, piping arrangements, equipment, controls, zoning, and safe operation.

Solar study should address solar thermal principles, collector types, storage, circulation, pumps, piping, controls, heat transfer, system configurations, solar water heating, solar pool heating, installation procedures, and maintenance.

Complete timed exercises using the highlighted and tabbed rental books. Record which books take the longest to navigate and which subjects produce repeated mistakes. Use that information to guide additional course review.

How 1 Exam Prep Helps You Reach Your Goal

1 Exam Prep combines structured online study guidance, trade-focused review, practice-oriented preparation, and a complete highlighted and tabbed rental library in one coordinated package.

The course helps candidates divide the Arizona R-37 examination into manageable subjects, including plumbing, fuel gas, mechanical systems, fire sprinklers, wastewater, safety, boilers, hydronic heating, mathematics, excavation, and solar thermal applications.

The prepared books reduce the time required to organize a large technical reference library. Tabs create recognizable navigation points, while highlighting helps selected definitions, formulas, tables, and provisions stand out during study.

Reference-navigation practice helps students become familiar with indexes, tables of contents, chapter structures, diagrams, appendices, exceptions, and technical tables. Candidates can develop a repeatable process for identifying the correct book and locating relevant information.

The 6-month course access period gives students time to review difficult subjects, repeat calculations, practice code navigation, and strengthen weaker areas. The goal is to support an organized preparation routine and build confidence with the complete R-37 reference set.

Frequently Asked Questions

What is included in the Books & Courses Rental Package?

The package includes all listed highlighted and tabbed rental books plus 6 months of course access.

Are all rental books highlighted and tabbed?

Yes. Every book included with this package is highlighted and tabbed to support organized study and efficient reference navigation.

What is the rental cost?

The rental cost is $1,940.

How much is the refundable book deposit?

The refundable book deposit is $1,100.

What is the total package price?

The total package price is $3,040, including the rental cost and refundable book deposit.

How long does course access last?

The package includes 6 months of course access.

How long should I allow for processing?

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

Is the Arizona R-37 examination open book?

Yes. The Arizona R-37 trade examination is open book, subject to the current rules governing approved references and permitted book preparation.

Does the package cover solar exam subjects?

Yes. The package includes the Solar Water and Pool Heating Design and Installation Manual and course preparation related to solar thermal systems.

Do highlighted and tabbed books replace studying?

No. Highlighting and tabs support navigation, but candidates must still understand the codes, calculations, trade principles, installation requirements, and safety subjects covered by the examination.

Should I practice with the rental books before exam day?

Yes. Regular timed practice helps candidates learn how each reference is organized and improves their ability to locate information efficiently.

Does completing the course automatically issue an Arizona contractor license?

No. The Arizona Registrar of Contractors issues licenses after applicants satisfy the applicable examination, experience, background-check, bonding, solar documentation, business, and application requirements.