Arizona Air Conditioning and Refrigeration, Including Solar Commercial Contractor (C-79) Books Allowed into Exam Package

The Arizona Air Conditioning and Refrigeration, Including Solar Commercial Contractor (C-79) Books Allowed into Exam Package is designed for candidates preparing for the Arizona C-79 commercial air conditioning and refrigeration contractor trade exam. This package focuses on the books allowed into the examination center, giving candidates the core code and safety references needed for open-book exam preparation.

The C-79 commercial classification is connected to air conditioning, refrigeration, evaporative cooling, heating, ventilation, duct work, controls, fuel gas, water piping connected to equipment served, system testing, balancing, and solar-related HVAC/R work within the classification scope. Candidates preparing for this exam need both field knowledge and code-navigation skill. The exam is timed, and success depends on knowing how to move through the approved references quickly and accurately.

This package includes Code of Federal Regulations - 29 CFR Part 1926 (OSHA), International Fuel Gas Code, 2018, International Mechanical Code, 2018, and International Plumbing Code, 2018. These references support preparation across construction safety, fuel gas systems, mechanical systems, ventilation, heating, refrigeration, water piping, gas piping, equipment installation, and related commercial HVAC/R code requirements.

Because the Arizona C-79 exam is open book, the books in this package are more than study materials. They are exam-room tools. Candidates should prepare these references before exam day, become familiar with their organization, and practice locating answers under timed conditions. Owning the books is important, but knowing how to use them during the exam is what makes them valuable.

This package is a practical fit for commercial HVAC contractors, refrigeration contractors, qualifying party applicants, mechanical supervisors, service managers, project managers, estimators, experienced technicians, and construction professionals preparing for the Arizona Registrar of Contractors licensing process.

What You Get

• Code of Federal Regulations - 29 CFR Part 1926 (OSHA) — a construction safety reference used to study OSHA standards for jobsite safety, fall protection, ladders, scaffolds, personal protective equipment, electrical safety, tools, excavation safety, material handling, and safe construction work practices.
• International Fuel Gas Code, 2018 — a fuel gas code reference used to study gas piping systems, gas-fired appliances, combustion air, venting, chimneys, connectors, shutoff valves, appliance installation, inspections, and fuel gas safety provisions.
• International Mechanical Code, 2018 — a mechanical code reference used to study heating, ventilation, air conditioning, exhaust systems, duct systems, refrigeration-related provisions, combustion air, mechanical equipment installation, and system safety requirements.
• International Plumbing Code, 2018 — a plumbing code reference used to study water piping, drainage-related provisions, equipment connections, plumbing coordination, fixtures, materials, installation standards, and code requirements that can affect commercial mechanical work.

Exam Details

The Arizona Air Conditioning and Refrigeration, Including Solar Commercial Contractor (C-79) trade exam is part of the Arizona air conditioning and refrigeration, including solar, examination group. The PSI content outline identifies the exam as R-39/C-79 (CR-79) Air Conditioning and Refrigeration, Including Solar.

The main R-39/C-79 air conditioning and refrigeration exam contains 80 questions. Candidates are given 210 minutes to complete the exam. The minimum passing score is 70%. The exam is administered as a computer-based contractor trade examination.

The PSI outline also lists a separate R-39/C-79 Solar content outline with 30 questions, a 75-minute time limit, and a 70% minimum passing score. The solar outline includes collection loops, components, installation, maintenance, mounting, principles, and solar systems piping.

The C-79 commercial scope includes installation, alteration, and repair of refrigeration and evaporative cooling systems. It also includes installation, alteration, and repair of heating systems of wet, dry, or radiant type. Wet systems include steam or hot water boilers and coils or baseboard convectors within the pressure and temperature limits listed for the classification. Dry systems include gas-fired furnaces and space heaters.

The C-79 scope also includes installation, alteration, and repair of ventilation systems, including duct work, air filtering devices, water treatment devices, pneumatic or electrical controls, and control piping. The scope includes thermal and acoustical insulation of refrigerant pipes and ductwork, vibration isolation materials and devices, liquid fuel piping and tanks, water and gas piping from the service connection to the equipment it serves, and testing and balancing of refrigerant, cooling, heating, and air handling systems.

When necessary, a new circuit may be added to an existing service panel or subpanel. Installation of a new service panel or subpanel is excluded from the classification scope.

The main R-39/C-79 content outline includes refrigeration, air conditioning, warm air heating, controls and motors, boilers, ventilation, evaporative coolers, fuel piping systems, water piping systems, steam, hot, chilled and condensing water, testing, balancing, inspection, sizing, and estimating. Candidates should prepare for both code-based questions and trade-knowledge questions.

Open Book Test

The Arizona Air Conditioning and Refrigeration, Including Solar Commercial Contractor (C-79) exam is an open book test. Candidates are responsible for bringing their own approved references to the examination center. The books in this package are allowed into the exam room for the R-39/C-79 air conditioning and refrigeration examination.

Reference materials may be highlighted, underlined, annotated, and indexed before the examination session. Candidates may not write, highlight, underline, or index in the references during the exam session. Books should be prepared before test day so they can be used efficiently without violating exam-room rules.

Additional loose papers are not permitted with approved references. Loose notes, loose sheets, and attached extra papers are not allowed. References may be tabbed or indexed with permanent tabs only. Temporary tabs, including removable note-style tabs, are not allowed and must be removed before the exam begins.

A silent, nonprinting, non-programmable calculator is permitted in the examination center. Candidates should practice using their calculator and books during study so they are comfortable working through tables, code sections, definitions, safety standards, sizing information, and trade calculations.

Open-book exam preparation should focus on speed and organization. Candidates should know where to find refrigeration provisions, mechanical ventilation rules, duct requirements, gas piping requirements, fuel gas appliance rules, combustion air provisions, water piping requirements, equipment installation rules, and OSHA construction safety standards.

Licensing Steps

Arizona contractor licensing is handled by the Arizona Registrar of Contractors. Candidates should begin by identifying the correct license classification for the type of work they plan to perform. For commercial air conditioning and refrigeration work, including solar-related HVAC/R work within the classification scope, the C-79 commercial contractor classification is the path connected to this package.

The qualifying party is the individual responsible for meeting the examination requirement for the license classification. This person demonstrates the trade knowledge required for the license. The qualifying party should make sure the selected examination matches the commercial C-79 classification being pursued.

Arizona contractor applicants may also need to complete the Arizona Statutes and Rules Exam, commonly known as the SRE. The SRE covers Arizona contractor statutes and rules related to licensing, business conduct, compliance, and contractor responsibilities. New applicants should review the Arizona Registrar of Contractors requirements for their qualifying party status and license classification.

For the trade examination, candidates follow PSI scheduling procedures and select the correct Arizona air conditioning and refrigeration, including solar, examination. PSI provides instructions for registration, scheduling, identification, cancellation, test center rules, remote proctoring options where available, and exam-day conduct.

After completing the required examination steps, applicants submit the license application and required documents to the Arizona Registrar of Contractors. Application processing may include qualifying party information, business entity information, bonding, required fees, background information, and other documentation required for the selected commercial contractor classification.

Candidates should keep their original exam score report and related examination records. Licensing applications must be submitted within the applicable time period after passing the required examination, and exam records may be needed during application processing.

State Requirements

The Arizona Registrar of Contractors licenses and regulates residential and commercial contractors in Arizona. The C-79 Air Conditioning and Refrigeration, Including Solar classification is intended for commercial contractors performing HVAC/R and related solar work within the classification scope.

The C-79 commercial scope includes refrigeration, evaporative cooling, heating systems, ventilation systems, duct work, air filtering devices, water treatment devices, controls, thermal and acoustical insulation, vibration isolation, liquid fuel piping and tanks, water and gas piping from the service connection to the equipment served, and testing and balancing of refrigerant, cooling, heating, and air handling circuits and systems.

Applicants should review the current Arizona Registrar of Contractors classification requirements before applying. The licensing process can include trade examination requirements, the Arizona Statutes and Rules Exam, qualifying party requirements, business documentation, bonding, application forms, fees, and compliance with Arizona contractor licensing rules.

Contractors who handle refrigerants should also understand that refrigerant work is subject to federal requirements separate from state contractor licensing. This exam package supports Arizona contractor exam preparation, while refrigerant certification and environmental compliance responsibilities must be handled according to applicable federal refrigerant rules.

Reference Books

• Code of Federal Regulations - 29 CFR Part 1926 (OSHA)
  This construction safety reference covers OSHA standards used to study jobsite safety, hazard recognition, personal protective equipment, ladders, scaffolds, tools, excavation, electrical safety, fall protection, material handling, housekeeping, and safe construction work practices.
• International Fuel Gas Code, 2018
  The 2018 International Fuel Gas Code covers fuel gas piping systems, gas-fired appliances, combustion air, venting, chimneys, connectors, shutoff valves, appliance installation, inspections, and fuel gas safety provisions.
• International Mechanical Code, 2018
  The 2018 International Mechanical Code covers mechanical system requirements, including heating, ventilation, air conditioning, exhaust systems, duct systems, combustion air, refrigeration-related provisions, mechanical equipment installation, and system safety requirements.
• International Plumbing Code, 2018
  The 2018 International Plumbing Code covers plumbing system provisions that may support commercial HVAC/R work, including water piping, drainage coordination, equipment connections, materials, fixtures, and installation requirements.

Exam Room Approved Books

• Code of Federal Regulations - 29 CFR Part 1926 (OSHA)
  Allowed into the exam room for the Arizona R-39/C-79 Air Conditioning and Refrigeration, Including Solar examination. This reference supports OSHA safety and construction jobsite questions.
• International Fuel Gas Code, 2018
  Allowed into the exam room for the Arizona R-39/C-79 Air Conditioning and Refrigeration, Including Solar examination. This reference supports fuel gas piping, gas-fired appliance installation, combustion air, venting, and fuel gas safety questions.
• International Mechanical Code, 2018
  Allowed into the exam room for the Arizona R-39/C-79 Air Conditioning and Refrigeration, Including Solar examination. This reference supports mechanical systems, HVAC equipment, ventilation, ducts, exhaust, refrigeration-related code provisions, and equipment installation questions.
• International Plumbing Code, 2018
  Allowed into the exam room for the Arizona R-39/C-79 Air Conditioning and Refrigeration, Including Solar examination. This reference supports water piping, plumbing coordination, equipment connections, and related commercial code questions.

Test Information and Study Materials

The Arizona C-79 exam requires candidates to connect commercial HVAC/R field knowledge with code-based reference skills. The exam is open book, but 80 questions in 210 minutes still requires steady pacing. Candidates should prepare by studying the references directly and practicing timed lookup.

Start with the International Mechanical Code, 2018. This book supports many of the mechanical system topics connected to commercial HVAC/R work, including equipment installation, ventilation, exhaust, duct systems, combustion air, refrigeration-related requirements, clearances, and system safety. Candidates should become familiar with the table of contents, definitions, chapter layout, and index.

The International Fuel Gas Code, 2018 should be studied for gas-fired equipment, fuel gas piping, appliance installation, venting, combustion air, chimneys, connectors, shutoff valves, sediment traps, and inspection requirements. Fuel gas questions often require careful reading because details such as equipment type, location, pressure, and venting method can affect the correct answer.

The International Plumbing Code, 2018 supports questions involving water piping systems, equipment connections, plumbing coordination, and code provisions related to mechanical work. Commercial HVAC/R contractors may encounter questions where water piping, condensate handling, drainage coordination, or equipment service connections matter.

The OSHA reference supports safety-related questions. Candidates should review personal protective equipment, ladders, scaffolds, fall protection, excavation hazards, electrical safety, hand and power tools, material handling, hazard communication, housekeeping, and safe work practices. Commercial HVAC/R contractors often work around roof-mounted units, mechanical rooms, refrigerant piping, electrical equipment, gas piping, cranes, ladders, and confined areas, so safety knowledge is an important part of preparation.

Candidates should prepare the books before exam day. Permanent tabs can help identify important chapters, definitions, tables, and subject areas. Highlighting and annotations should be completed before the examination session. Over-marking can make a book harder to use, so candidates should focus on clear organization and the areas most likely to be needed during the test.

Timed practice is important. With 210 minutes for 80 questions, candidates have a little more than two and a half minutes per question. Some questions may be answered from trade knowledge, while others require code lookup. A good strategy is to answer familiar questions first, mark difficult questions, and return to them after making progress.

Candidates should also practice choosing the correct reference. OSHA safety questions generally belong in 29 CFR Part 1926. Gas piping, combustion air, venting, and fuel gas appliance questions often belong in the International Fuel Gas Code. Mechanical equipment, ventilation, ducts, exhaust, and refrigeration-related questions often belong in the International Mechanical Code. Water piping and plumbing coordination questions often belong in the International Plumbing Code.

How 1 Exam Prep Helps You Reach Your Goal

1 Exam Prep helps Arizona contractor candidates prepare with organized study guidance, trade-focused review, practice-oriented preparation, and reference navigation support. For the Arizona Air Conditioning and Refrigeration, Including Solar Commercial Contractor (C-79) Books Allowed into Exam Package, the goal is to help students study with the correct exam-room references and build confidence using them before test day.

Many C-79 candidates already have commercial HVAC, refrigeration, mechanical, or solar-related field experience. The challenge is turning that experience into exam-ready knowledge. 1 Exam Prep supports that process by helping students focus on mechanical code requirements, fuel gas systems, plumbing coordination, refrigeration, air conditioning, warm air heating, boilers, ventilation, evaporative cooling, controls, motors, testing, balancing, sizing, estimating, and OSHA safety.

Open-book exams require a specific preparation method. Candidates need to know how to search references quickly, how to identify the correct book for each question, and how to work through code language without getting stuck. 1 Exam Prep encourages students to practice with the books in hand, use permanent tabs where helpful, and develop a repeatable method for finding answers.

1 Exam Prep also helps students prepare with a realistic study structure. That includes reviewing the exam scope, organizing the reference books, practicing timed questions, strengthening weak areas, and becoming comfortable with the test format. This approach supports serious preparation without promising a passing score, licensing approval, or guaranteed exam outcome.

FAQ: What books are included in this Arizona C-79 exam package?

This package includes Code of Federal Regulations - 29 CFR Part 1926 (OSHA), International Fuel Gas Code, 2018, International Mechanical Code, 2018, and International Plumbing Code, 2018.

FAQ: Are these books allowed into the Arizona C-79 exam room?

Yes. These references are allowed into the examination center for the Arizona R-39/C-79 Air Conditioning and Refrigeration, Including Solar examination. Candidates must follow PSI rules for bound references, permanent tabs, highlighting, annotations, and exam-day use.

FAQ: Is the Arizona C-79 Air Conditioning and Refrigeration, Including Solar exam open book?

Yes. The Arizona C-79 Air Conditioning and Refrigeration, Including Solar trade exam is an open book test. Candidates are responsible for bringing their own approved references to the examination center.

FAQ: How many questions are on the Arizona C-79 exam?

The main R-39/C-79 air conditioning and refrigeration exam has 80 questions. Candidates are given 210 minutes, and the minimum passing score is 70%.

FAQ: Is there a solar content outline for this classification?

Yes. PSI lists a separate R-39/C-79 Solar content outline with 30 questions, a 75-minute time limit, and a 70% minimum passing score. Solar topics include collection loops, components, installation, maintenance, mounting, principles, and solar systems piping.

FAQ: What topics are covered on the main C-79 exam?

The main exam covers refrigeration, air conditioning, warm air heating, controls and motors, boilers, ventilation, evaporative coolers, fuel piping systems, water piping systems, steam, hot, chilled and condensing water, testing, balancing, inspection, sizing, and estimating.

FAQ: Can I write in my books during the exam?

No. Reference materials may be highlighted, underlined, annotated, and indexed before the examination session, but candidates may not write, highlight, underline, or index in the books during the exam.

FAQ: Can I use tabs in my exam books?

Yes. Permanent tabs are allowed. Temporary tabs, including removable note-style tabs, are not allowed and must be removed before the examination begins.

FAQ: Who should use this C-79 books allowed into exam package?

This package is designed for commercial HVAC contractors, refrigeration contractors, qualifying party applicants, mechanical supervisors, service managers, project managers, estimators, experienced technicians, and construction professionals preparing for the Arizona C-79 commercial contractor trade exam.