Arizona Plumbing, Including Solar Residential Contractor (R-37) Highlighted & Tabbed Book Package

Prepare for the Arizona Plumbing, Including Solar Residential Contractor (R-37) examination with a complete highlighted and tabbed book package built around the listed codes, safety regulations, fire sprinkler standards, plumbing references, hydronic heating resources, and solar thermal materials. This package brings the examination library together in one coordinated set for organized study and efficient open-book reference navigation.

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

Every book included in this package is highlighted and tabbed. Highlighting helps important provisions, tables, definitions, formulas, and technical concepts stand out during study. Tabs create recognizable navigation points that can help candidates move between major chapters and subjects more efficiently.

A highlighted and tabbed reference library is especially valuable for an open-book contractor examination. Candidates must do more than bring the correct books into the testing room. They must understand what each publication covers, how it is organized, and where to look when a question involves a particular plumbing, mechanical, safety, sprinkler, wastewater, or solar subject.

This package is designed for plumbers, solar water-heating installers, supervisors, qualifying parties, business owners, and experienced tradespeople pursuing the Arizona R-37 residential contractor classification. It can also support professionals expanding their knowledge of plumbing systems that incorporate solar thermal applications.

Highlighted and tabbed books do not replace trade knowledge or consistent study. They provide a practical framework for working with a large technical library. Candidates should use the prepared references throughout their study process, complete timed navigation exercises, review difficult calculations, and practice applying the material to residential plumbing and solar system scenarios.

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

Exam Details

The Arizona Plumbing, Including Solar Residential Contractor (R-37) examination evaluates knowledge associated with residential plumbing work and solar applications. The classification scope 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, fuel gas piping, mechanical installations, residential sprinkler systems, onsite wastewater treatment, excavation, boilers, hydronic heating, pipe-trade mathematics, and solar thermal systems.

Questions may require candidates to identify the correct code requirement, apply a sizing table, interpret a technical definition, select a material, evaluate a piping arrangement, perform a calculation, recognize a safety requirement, or determine which reference applies to the condition described.

Solar-related preparation may include solar energy principles, solar water-heating applications, solar pool heating, system components, collectors, storage, piping arrangements, controls, heat transfer, installation practices, system operation, and safety considerations.

Candidates should develop the ability to recognize the subject of a question before opening a reference. A drainage question may lead to the International Plumbing Code, while a fuel gas question may require the International Fuel Gas Code. A boiler or hydronic system question may involve the specialized heating references, and a solar thermal question may require the Solar Water and Pool Heating Design and Installation Manual.

Open Book Test

The Arizona R-37 trade examination is an open-book test. Candidates may use approved reference materials under the testing provider’s current rules concerning permitted books and book preparation.

Open-book testing rewards candidates who can navigate technical references efficiently. The books contain a large amount of information, and searching without a clear method can consume valuable testing time. Candidates should practice identifying the subject, selecting the appropriate publication, choosing an effective index term, and reviewing the relevant section.

The highlighted and tabbed books in this package help establish visual reference points throughout the library. Tabs can guide candidates toward major chapters and subject areas, while highlighting makes selected information easier to recognize during study and timed practice.

Candidates should learn how to use tables of contents, indexes, definitions, technical tables, formulas, diagrams, appendices, and cross-references. They should also read the language surrounding a highlighted section because exceptions, notes, table headings, and related provisions may affect the correct answer.

Practice should include moving between different books. Plumbing, fuel gas, mechanical, fire sprinkler, safety, wastewater, hydronic heating, boiler, mathematics, and solar questions may require completely different references. Familiarity with the entire library can reduce unnecessary searching.

Before reporting for the examination, candidates should review the current testing bulletin for rules concerning binding, tabs, highlights, handwritten notes, loose pages, inserts, and other modifications. All references must comply with the rules in effect on the examination date.

Licensing Steps

Begin by reviewing the Arizona contractor license classifications and confirming that the R-37 Plumbing, Including Solar residential classification matches the work the business intends to perform. The classification includes residential plumbing and applicable solar work within its established scope.

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

Complete the required trade examination and any additional examination requirements associated with the classification unless an authorized waiver applies. Applicants should also complete the applicable Arizona statutes and rules requirement as directed during the licensing process.

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

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

Applicants pursuing a classification that includes solar work must also address the applicable solar licensing documentation, including the required solar warranty materials.

Submit the completed application to the Arizona Registrar of Contractors. The agency reviews the application and supporting records before determining whether the requested license can be issued. Passing an examination alone does not automatically provide a contractor license.

State Requirements

Arizona contractor licensing is administered by the Arizona Registrar of Contractors. Applicants must satisfy the requirements associated with the selected classification, qualifying party, relevant experience, required examinations or authorized waivers, background checks, contractor bond, business records, and application documentation.

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

The qualifying party should have experience relevant to plumbing and the other work covered by the classification. Applicants should maintain accurate records describing employment, project duties, supervision, system installation, repair work, and hands-on trade responsibilities.

Applicants should ensure that business names, ownership information, identification records, bond documents, background-check materials, and qualifying-party details remain consistent throughout the application.

Because the classification includes solar work, applicants must submit the required solar warranty documentation as part of the licensing process. The warranty should comply with the requirements applicable to the license application.

Applicants should use the current forms, examination information, and application instructions for their licensing cycle. Incomplete or inconsistent documentation may delay the state review process.

Reference Books

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

• Included 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 Book: International Fuel Gas Code, 2018
  A highlighted and tabbed code addressing gas piping, system sizing, appliance connections, shutoff valves, regulators, combustion air, venting, testing, and installation requirements.
• Included Book: International Mechanical Code, 2018
  A highlighted and tabbed code covering mechanical equipment, ventilation, exhaust, combustion air, hydronic systems, appliances, and related installations.
• Included 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 Book: NFPA 13: Installation of Sprinkler Systems, 2019
  A highlighted and tabbed standard addressing automatic sprinkler-system components, piping, installation, water supplies, inspection, and testing.
• Included 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 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, installation requirements, components, and water-supply provisions.
• Included 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 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 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 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 Book: Arizona 811 - Arizona Blue Stake Brochure
  A prepared Arizona reference covering underground utility location, safe digging, and excavation practices.
• Included 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, and radiant heating.
• Included Book: Solar Water and Pool Heating Design and Installation Manual
  A highlighted and tabbed solar thermal reference covering solar energy principles, system design, collectors, storage, piping, controls, installation, operation, maintenance, solar water heating, and solar pool heating.

Test Information and Study Materials

Begin preparation by dividing the examination library into major subject groups. Use the International Plumbing Code for drainage, vents, water supply, fixtures, traps, water heaters, indirect waste, storm drainage, materials, and testing.

Use the International Fuel Gas Code for gas piping, demand, system sizing, appliance connections, regulators, shutoff valves, combustion air, venting, and testing. Review the International Mechanical Code for mechanical equipment, ventilation, exhaust, combustion air, and hydronic systems.

Compare NFPA 13, NFPA 13D, and NFPA 13R carefully. Each standard addresses different sprinkler-system applications and occupancy conditions. Candidates should identify the system or building described before selecting a sprinkler reference.

Review OSHA requirements for excavation, protective systems, access and egress, ladders, scaffolds, personal protective equipment, fall protection, electrical hazards, and safe construction practices. Use the Arizona 811 material to reinforce utility-location and safe-digging procedures.

Practice calculations involving measurements, areas, volumes, offsets, slopes, pressure, capacity, pipe sizing, flow, and system performance. Hydronic and boiler review should include equipment, piping arrangements, circulation, controls, heat transfer, and safe operation.

Solar study should address solar thermal principles, solar water-heating systems, pool-heating applications, collectors, storage, circulation, controls, system configurations, installation methods, and maintenance considerations.

Complete timed practice with the highlighted and tabbed books. Record which references take the longest to navigate and which topics produce repeated errors. Use those results to guide additional study.

How 1 Exam Prep Helps You Reach Your Goal

1 Exam Prep helps candidates organize the Arizona R-37 study process with a complete highlighted and tabbed reference package covering residential plumbing, fuel gas, mechanical systems, fire sprinklers, wastewater, construction safety, hydronic heating, boilers, mathematics, and solar thermal applications.

The prepared books reduce the work required to organize a large technical library. Candidates can focus on understanding the material, practicing calculations, reviewing trade subjects, and improving open-book navigation.

Tabs help identify major sections, while highlighting makes selected provisions easier to recognize during review. Repeated practice with the prepared references can improve familiarity with indexes, definitions, tables, diagrams, formulas, exceptions, and chapter layouts.

The package supports trade-focused preparation rather than passive reading. Candidates can practice connecting a question with the correct reference, locating the supporting information, and applying it to a residential plumbing or solar system scenario.

1 Exam Prep provides a practical study structure intended to build stronger reference-navigation habits and greater confidence with the complete R-37 examination library. Examination success and licensing approval depend on the candidate’s preparation, performance, experience, and completion of the applicable state requirements.

Frequently Asked Questions

What is included in this highlighted and tabbed package?

The package includes all listed plumbing, fuel gas, mechanical, NFPA, OSHA, Arizona wastewater, mathematics, pipe-trade, boiler, utility-location, hydronic heating, and solar thermal references.

Are all the books highlighted and tabbed?

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

Is the Arizona R-37 examination open book?

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

How many questions are on the R-37 examination?

The R-37 trade examination contains 100 questions.

How much time is allowed for the examination?

Candidates are allowed 240 minutes to complete the R-37 examination.

What score is required to pass?

A minimum score of 70 percent is required to pass the R-37 trade examination.

What solar subjects should I study?

Solar preparation may include solar thermal principles, collectors, storage, system circulation, piping, controls, solar water heating, pool heating, installation, operation, maintenance, and safety.

Do highlighted and tabbed books eliminate the need to study?

No. Highlighting and tabs support navigation, but candidates still need to understand the codes, calculations, systems, safety requirements, and trade principles covered by the examination.

Does this package include an online course?

This product is a highlighted and tabbed book package. Course access is not included unless it is specifically added or purchased separately.

Should I practice with the books before exam day?

Yes. Timed practice helps candidates learn each book’s layout, identify useful index terms, locate important tables, and improve open-book navigation.

Does passing the examination automatically issue the license?

No. Passing the examination is one part of the licensing process. Applicants must also satisfy the applicable qualifying-party, experience, background-check, bonding, solar documentation, business, and application requirements.