Arizona Plumbing, Including Solar Commercial Contractor (C-77) Exam Book Package

The Arizona Plumbing, Including Solar Commercial Contractor (C-77) Exam Book Package is designed for contractors preparing for the Arizona C-77 commercial plumbing contractor trade exam and needing the reference books used for exam preparation. This package brings together the plumbing, fuel gas, mechanical, fire sprinkler, wastewater, pipe trade, boiler, hydronic, solar, utility-location, and OSHA safety references associated with Arizona C-77 exam study.

The Arizona C-77 Plumbing, Including Solar classification is a commercial contractor classification connected to plumbing work, including solar. Candidates preparing for this license path should be ready for a broad exam that may involve plumbing systems, fuel gas systems, mechanical code, hydronic heating, boiler concepts, solar water heating, solar pool heating, fire sprinkler references, wastewater provisions, trade math, underground utility awareness, and OSHA construction safety.

This exam book package is intended for candidates who want the reference set for Arizona C-77 preparation. The C-77 reference list is larger than many trade exam book sets, so students should approach preparation with a plan. Owning the books is only the starting point. Candidates should learn how each book is organized, what type of information it contains, and when to use it during exam-style practice.

Because the Arizona C-77 exam is open book, reference navigation is a major part of exam readiness. Students should practice finding information in the International Plumbing Code, International Fuel Gas Code, International Mechanical Code, OSHA 29 CFR Part 1926, NFPA sprinkler standards, Arizona wastewater provisions, trade math references, hydronic heating materials, boiler references, and solar water and pool heating materials. The more familiar the references become during study, the easier it is to work through questions under timed testing conditions.

This package is a good fit for students who already have a course, prefer to study directly from the books, or need the reference materials before starting structured exam preparation. The books support exam study, but students should still use practice questions, topic review, timed drills, and repeated reference navigation to build confidence before test day.

What You Get

• Book: Code of Federal Regulations - 29 CFR Part 1926 (OSHA).
• Book: International Fuel Gas Code, 2018.
• Book: International Mechanical Code, 2018.
• Book: International Plumbing Code, 2018.
• Book: NFPA 13: Installation of Sprinkler Systems, 2016.
• Book: NFPA 13D - Installation of Sprinkler Systems in One- and Two-Family Dwellings and Manufactured Homes, 2007 Edition.
• Book: NFPA 13R - Sprinkler Systems for Residential Occupancies up to and Including Four Stories in Height, 2007 Edition.
• Book: On-site Wastewater Treatment Facility Provisions in Unified Water Quality Permit Rule, Arizona Administrative Code Title 18, Chapter 9, 2006.
• Book: Mathematics for Plumbers and Pipefitters, 8th Edition.
• Book: IPT’s Pipe Trades Handbook, Robert A. Lee, 2016.
• Book: Boiler Operator’s Guide, 5th Edition.
• Book: Arizona 811 - Arizona Blue Stake Brochure.
• Book: Modern Hydronic Heating for Residential and Light Commercial Buildings, John Siegenthaler, P.E., 2022.
• Book: Solar Water and Pool Heating Design and Installation Manual.

This book package gives students the listed references for Arizona C-77 exam preparation. The set supports both code-based and trade-knowledge study. Candidates should use the books actively while preparing, not only as materials to bring on exam day. The best results come from practicing with the books until the structure, indexes, chapters, and tables become familiar.

Exam Details

The Arizona Plumbing, Including Solar Commercial Contractor (C-77) exam is part of the Arizona contractor licensing examination process. Arizona contractor trade exams are administered through PSI for the Arizona Registrar of Contractors. PSI provides candidate examination information, trade content outlines, reference lists, examination rules, scheduling procedures, and testing requirements for Arizona contractor classifications.

The C-77 Plumbing, Including Solar commercial contractor exam includes 100 questions, allows 240 minutes of testing time, and requires a 70% minimum passing score. Candidates should prepare for a broad range of commercial plumbing and solar-related topics, including plumbing code, fuel gas, mechanical systems, fire sprinkler references, wastewater provisions, hydronic heating, boiler concepts, solar water heating, solar pool heating, pipe trade math, utility locating, and construction safety.

The exam may include questions based on listed reference materials, trade knowledge, and general industry practices. Code-based questions are tied to the specific code editions listed for the examination. This package includes the 2018 International Plumbing Code, 2018 International Fuel Gas Code, and 2018 International Mechanical Code, along with the additional standards and trade references supplied for C-77 exam preparation.

The C-77 classification includes plumbing, including solar, so candidates should be ready for questions that connect plumbing systems with solar water heating and solar pool heating. Students should prepare for topics such as water distribution, sanitary drainage, storm drainage, venting, fixtures, traps, interceptors, fuel gas piping, appliance venting, hydronic heating, boilers, fire sprinkler systems, on-site wastewater treatment provisions, and excavation safety.

Because the reference list is extensive, candidates should study with a clear system. A strong approach is to group the books by topic: plumbing code, gas code, mechanical and hydronic systems, fire sprinklers, wastewater provisions, safety, trade math, boilers, solar, and utility awareness. This makes the material easier to manage and helps students identify the correct reference more quickly during practice.

Open Book Test

The Arizona C-77 Plumbing, Including Solar commercial contractor exam is an open-book trade exam using approved references. Candidates are responsible for bringing their allowed references to the examination center. Since the reference list is large, students should make book navigation a central part of their study routine.

Open-book testing does not mean the answers are easy to find. Candidates still need to understand the subject, choose the correct reference, locate the correct section, and read the surrounding language carefully. Many code and standards questions depend on definitions, table notes, exceptions, conditions, and exact wording. Students who have not practiced with the books may lose valuable time searching in the wrong place.

Students should practice using the same references they plan to bring to the exam. A productive routine includes reviewing a topic, answering practice questions, locating supporting information in the books, and repeating weak areas until the references become easier to use. The goal is to make the books familiar before test day, not to learn them for the first time in the exam room.

Exam references should be prepared according to PSI rules. Reference materials may be highlighted, underlined, annotated, and indexed before the exam session. Candidates should not write in the references during the exam. Additional papers, whether loose or attached, are not allowed with approved references. Permanent tabs may be used, while temporary removable tabs are not allowed. Downloaded references must be bound before being brought into the testing center.

Licensing Steps

Arizona contractor licensing is handled through the Arizona Registrar of Contractors. A candidate pursuing the C-77 Plumbing, Including Solar Commercial Contractor classification should begin by confirming that the C-77 classification matches the commercial plumbing and solar plumbing work the business intends to perform.

The qualifying party is the person responsible for meeting the examination requirements for the license classification. For many applicants, this includes passing the required trade exam and completing Arizona statutes and rules training when applicable. Applicants must also prepare the business information, qualifying party information, and other state application documents required by the Arizona Registrar of Contractors.

The general licensing path includes selecting the correct classification, preparing for the trade exam, completing the examination process, gathering application materials, and submitting the contractor license application to the Arizona Registrar of Contractors. PSI administers the trade examination program, so candidates should follow PSI procedures for exam registration, scheduling, testing rules, and score reporting.

After the required exam steps are complete, the licensing application is reviewed through the Arizona Registrar of Contractors. State approval is separate from exam preparation and depends on the applicant meeting all applicable requirements. This book package supports exam preparation by providing the listed reference materials for study.

State Requirements

The Arizona Registrar of Contractors issues contractor licenses for commercial, residential, and dual classifications. The C-77 Plumbing, Including Solar classification is a commercial classification for plumbing work, including solar, within the limits of the classification.

The C-77 classification covers installation, alteration, and repair of plumbing, including solar, when performed within property lines and not on public easements or rights-of-way except as permitted by the classification. Candidates should understand the state-defined scope before applying for the license and should make sure the classification matches the services their business intends to perform.

Arizona licensing requirements may include trade exam completion, qualifying party requirements, business entity information, application documents, financial or bonding-related requirements, and Arizona statutes and rules training when applicable. Requirements can vary based on the applicant’s business structure, qualifying party status, prior licensing history, and selected classification.

This product provides the C-77 exam book package for preparation. Licensing approval, exam eligibility, and application review are handled through the appropriate Arizona licensing and testing authorities.

Reference Books

• Code of Federal Regulations - 29 CFR Part 1926 (OSHA)
  This construction safety reference supports study for jobsite safety, fall protection, excavation safety, ladders, scaffolding, personal protective equipment, hazard communication, material handling, and other OSHA construction standards.
• International Fuel Gas Code, 2018
  This code reference supports study for fuel gas piping systems, appliance connections, combustion air, venting, gas sizing, installation requirements, pressure testing, and inspection-related fuel gas topics.
• International Mechanical Code, 2018
  This mechanical code reference supports study for mechanical systems, ventilation, combustion air, hydronic systems, boilers, equipment installation, and mechanical safety requirements.
• International Plumbing Code, 2018
  This plumbing code reference supports preparation for water supply, sanitary drainage, storm drainage, vents, traps, fixtures, materials, installation requirements, and plumbing code navigation.
• NFPA 13: Installation of Sprinkler Systems, 2016
  This fire sprinkler standard supports study for sprinkler system installation concepts, system components, water supply considerations, design coordination, and commercial fire protection requirements.
• NFPA 13D - Installation of Sprinkler Systems in One- and Two-Family Dwellings and Manufactured Homes, 2007 Edition
  This sprinkler standard supports study for residential sprinkler systems in one- and two-family dwellings and manufactured homes.
• NFPA 13R - Sprinkler Systems for Residential Occupancies up to and Including Four Stories in Height, 2007 Edition
  This standard supports study for sprinkler systems in qualifying residential occupancies up to and including four stories in height.
• On-site Wastewater Treatment Facility Provisions in Unified Water Quality Permit Rule, Arizona Administrative Code Title 18, Chapter 9, 2006
  This Arizona-specific reference supports study for on-site wastewater treatment facility provisions and related regulatory requirements.
• Mathematics for Plumbers and Pipefitters, 8th Edition
  This reference supports trade math review for plumbing and pipefitting, including measurements, offsets, slopes, volumes, formulas, and practical jobsite calculations.
• IPT’s Pipe Trades Handbook, Robert A. Lee, 2016
  This pipe trades reference supports study for piping materials, fittings, formulas, trade data, measurements, and practical pipe trade information.
• Boiler Operator’s Guide, 5th Edition
  This reference supports study for boiler operation, boiler components, safety controls, system operation, and boiler-related trade concepts.
• Arizona 811 - Arizona Blue Stake Brochure
  This brochure supports preparation related to underground utility locating, excavation awareness, and safe digging practices in Arizona.
• Modern Hydronic Heating for Residential and Light Commercial Buildings, John Siegenthaler, P.E., 2022
  This hydronic heating reference supports study for hydronic system design, components, controls, piping arrangements, heat transfer, and residential or light commercial heating concepts.
• Solar Water and Pool Heating Design and Installation Manual
  This solar reference supports study for solar water heating, solar pool heating, system components, layout, installation practices, controls, circulation, and solar thermal design concepts.

Exam Room Approved Books

This package includes the following books used for Arizona Plumbing, Including Solar Commercial Contractor (C-77) exam preparation:

• Code of Federal Regulations - 29 CFR Part 1926 (OSHA)
  Used for OSHA construction safety and jobsite safety requirements.
• International Fuel Gas Code, 2018
  Used for fuel gas piping, appliance installation, venting, combustion air, sizing, testing, and gas system safety requirements.
• International Mechanical Code, 2018
  Used for mechanical systems, boilers, hydronic systems, ventilation, combustion air, and mechanical equipment requirements.
• International Plumbing Code, 2018
  Used for plumbing systems, fixtures, drainage, vents, water supply, traps, materials, and plumbing code requirements.
• NFPA 13: Installation of Sprinkler Systems, 2016
  Used for commercial sprinkler system installation concepts and fire protection requirements.
• NFPA 13D - Installation of Sprinkler Systems in One- and Two-Family Dwellings and Manufactured Homes, 2007 Edition
  Used for sprinkler systems in one- and two-family dwellings and manufactured homes.
• NFPA 13R - Sprinkler Systems for Residential Occupancies up to and Including Four Stories in Height, 2007 Edition
  Used for sprinkler systems in residential occupancies up to and including four stories in height.
• On-site Wastewater Treatment Facility Provisions in Unified Water Quality Permit Rule, Arizona Administrative Code Title 18, Chapter 9, 2006
  Used for Arizona on-site wastewater treatment facility provisions.
• Mathematics for Plumbers and Pipefitters, 8th Edition
  Used for plumbing and pipefitting math, measurements, offsets, slopes, and jobsite calculations.
• IPT’s Pipe Trades Handbook, Robert A. Lee, 2016
  Used for pipe trade data, formulas, fittings, materials, and practical piping information.
• Boiler Operator’s Guide, 5th Edition
  Used for boiler operation, safety controls, system components, and boiler-related trade knowledge.
• Arizona 811 - Arizona Blue Stake Brochure
  Used for underground utility locating, excavation awareness, and safe digging practices.
• Modern Hydronic Heating for Residential and Light Commercial Buildings, John Siegenthaler, P.E., 2022
  Used for hydronic heating system design, components, piping, controls, and heat-transfer concepts.
• Solar Water and Pool Heating Design and Installation Manual
  Used for solar water heating and solar pool heating system concepts, components, design, and installation practices.

Test Information and Study Materials

Effective preparation for the Arizona C-77 Plumbing, Including Solar exam should include code study, trade math, safety review, solar system review, and repeated reference practice. The approved book list is extensive, so students should organize their study by topic instead of trying to read every book from front to back without a plan.

For plumbing code preparation, the 2018 International Plumbing Code is a major reference. Students should study water supply systems, sanitary drainage, storm drainage, venting, fixtures, traps, interceptors, cleanouts, materials, installation requirements, and inspection provisions. The IPC contains definitions, tables, and exceptions that require careful reading.

For fuel gas preparation, the 2018 International Fuel Gas Code should be reviewed closely. Students should focus on gas piping, sizing, appliance connections, combustion air, venting, shutoff valves, pressure testing, and installation requirements. Fuel gas questions often depend on system type, pressure, appliance condition, location, or table use.

For mechanical and hydronic topics, students should use the 2018 International Mechanical Code, Modern Hydronic Heating, Boiler Operator’s Guide, and related pipe trade references. Preparation should include hydronic piping, boilers, pumps, controls, combustion air, venting, system operation, heating-system components, and mechanical equipment requirements.

For solar preparation, students should study solar water heating and solar pool heating concepts. Solar-related plumbing work can involve collectors, storage tanks, piping, pumps, controls, circulation, heat transfer, freeze protection, mounting considerations, and installation practices. Candidates should connect solar system knowledge with plumbing and mechanical system understanding.

For fire sprinkler preparation, students should review NFPA 13, NFPA 13D, and NFPA 13R. These standards support study for sprinkler system concepts, occupancy differences, system components, installation rules, water supply considerations, and fire protection requirements. Students should understand which sprinkler reference applies to which type of building or occupancy.

For wastewater and excavation-related study, candidates should review the Arizona wastewater provisions and the Arizona 811 Blue Stake Brochure. Plumbing work often involves underground systems, excavation, utility awareness, and site coordination. Understanding safe digging practices and utility-location responsibilities supports both exam preparation and professional work.

For OSHA safety, students should study 29 CFR Part 1926 for common construction hazards. Plumbing contractors may encounter excavation hazards, ladders, scaffolds, material handling, personal protective equipment, electrical hazards, and general jobsite safety responsibilities. OSHA questions often describe a work condition and require the candidate to identify the correct safety practice or rule.

Trade math should also be part of the preparation routine. Mathematics for Plumbers and Pipefitters and IPT’s Pipe Trades Handbook can support study for measurements, conversions, offsets, slopes, pipe data, volume, area, pressure-related concepts, and practical jobsite calculations. Candidates should practice math problems step by step and learn which formulas or tables apply to different types of questions.

A strong study routine includes answering practice questions, locating answers in the references, reviewing missed questions, and repeating weak topics. Students should also practice under timed conditions. The C-77 exam allows 240 minutes for 100 questions, so candidates should build a steady pace and learn when to search a reference, when to rely on prepared knowledge, and when to move forward and return to a difficult question later.

How 1 Exam Prep Helps You Reach Your Goal

1 Exam Prep helps Arizona C-77 candidates prepare with organized study guidance, trade-focused review, practice-oriented preparation, reference navigation support, and confidence-building study structure. The Plumbing, Including Solar commercial contractor exam covers a wide range of technical material, and many students benefit from a clear approach that breaks the references into manageable study areas.

This Exam Book Package gives candidates the listed references used for Arizona C-77 preparation. The books support open-book testing, reference navigation, code review, trade math practice, and solar plumbing study. Candidates who practice consistently with the references can become more comfortable locating information and applying it to exam-style questions.

1 Exam Prep’s approach is practical and realistic. Students are encouraged to study consistently, review plumbing and solar topics, practice trade math, learn code navigation, and work through the reference books before exam day. The goal is to help students feel more organized, more confident, and better prepared as they work toward the Arizona C-77 Plumbing, Including Solar commercial contractor licensing goal.

No exam-preparation provider can guarantee a passing score, licensing approval, earnings, state approval, or exam outcome. This book package is designed to support preparation through access to the references needed for structured study and open-book exam practice.

FAQ Section

What is included in this Arizona C-77 Exam Book Package?

This package includes the listed reference books for Arizona Plumbing, Including Solar Commercial Contractor (C-77) exam preparation.

Does this package include an online course?

This product is written as an exam book package. Online course access is not included unless purchased separately as part of another package.

Is the Arizona C-77 exam open book?

Yes. The Arizona C-77 Plumbing, Including Solar commercial contractor exam is an open-book trade exam using approved references. Candidates are responsible for bringing their allowed references to the exam.

How many questions are on the Arizona C-77 exam?

The C-77 Plumbing, Including Solar commercial contractor exam includes 100 questions.

How much time is allowed for the Arizona C-77 exam?

The C-77 exam allows 240 minutes of testing time.

What score is required to pass the Arizona C-77 exam?

The minimum passing score for the C-77 Plumbing, Including Solar commercial contractor exam is 70%.

What topics should I study for the Arizona C-77 exam?

Students should prepare for plumbing code, fuel gas, mechanical systems, fire sprinkler references, wastewater provisions, pipe trade math, boilers, hydronic heating, solar water heating, solar pool heating, utility locating, and OSHA construction safety.

What does the Arizona C-77 classification cover?

The C-77 classification covers installation, alteration, and repair of plumbing, including solar, when performed within property lines and not on public easements or rights-of-way except as permitted by the classification.

Who administers the Arizona contractor trade exam?

PSI administers the Arizona contractor trade examination program for the Arizona Registrar of Contractors.

Does this product include the Arizona license application?

No. This product is an exam book package. Licensing applications and state approval are handled through the Arizona Registrar of Contractors.

Does buying the books guarantee that I will pass?

No. These books support exam preparation, but passing depends on the candidate’s study time, preparation, experience, and performance on exam day.