Arizona Air Conditioning and Refrigeration Residential / Commercial Contractor (CR-39) Highlighted & Tabbed Books Allowed into Exam Package

The Arizona Air Conditioning and Refrigeration Residential / Commercial Contractor (CR-39) Highlighted & Tabbed Books Allowed into Exam Package is designed for candidates preparing for the Arizona CR-39 residential/commercial air conditioning and refrigeration contractor exam who want the approved exam-room reference books organized before test day. This package focuses on the books allowed into the exam room for the CR-39 trade exam: Code of Federal Regulations - 29 CFR Part 1926 (OSHA), International Fuel Gas Code, 2018, and International Mechanical Code, 2018.

The CR-39 classification combines residential and commercial air conditioning and refrigeration preparation, which means candidates should be ready for a broad range of HVAC, refrigeration, heating, ventilation, fuel gas, and safety topics. The exam can involve mechanical code requirements, fuel gas provisions, OSHA construction safety, refrigeration systems, air conditioning systems, warm air heating, controls, motors, boilers, ventilation, evaporative cooling, fuel piping, water piping, testing, balancing, sizing, estimating, and inspection concepts.

Commercial and residential HVAC exams require more than owning the right books. Candidates need to know how to use the references efficiently. This highlighted and tabbed package is built to support open-book exam preparation by organizing the listed exam-room books with permanent tabs and highlighted sections. That organization can help candidates move more quickly between safety standards, mechanical code provisions, fuel gas rules, combustion air topics, venting requirements, equipment installation rules, and system safety provisions.

Please allow up to 15 business days for tabbed and highlighted books allowed into exam package orders. This processing window supports preparation of the books before shipment or fulfillment. Candidates should plan ahead so they have enough time to receive the books, study with them, and become familiar with the tabs and highlighted sections before taking the exam.

The Arizona CR-39 exam is open book, but open book does not mean easy. Candidates still need to understand the systems, read questions carefully, choose the correct reference, and locate the applicable rule. Highlighted and tabbed books can support study and reference navigation, but they work best when candidates use them regularly before exam day.

What You Get

• Highlighted and Tabbed Book: Code of Federal Regulations - 29 CFR Part 1926 (OSHA).
• Highlighted and Tabbed Book: International Fuel Gas Code, 2018.
• Highlighted and Tabbed Book: International Mechanical Code, 2018.
• Exam-Room Reference Focus: This package includes the listed books allowed into the Arizona CR-39 exam room.
• Permanent Tabs and Highlighting: Books are prepared to support faster navigation during study and open-book exam preparation.
• Order Processing Note: Please allow up to 15 business days for tabbed and highlighted books allowed into exam package orders.

Exam Details

The Arizona Air Conditioning and Refrigeration Residential / Commercial Contractor (CR-39) trade exam measures knowledge related to HVAC and refrigeration work in both residential and commercial settings. Candidates should prepare for refrigeration, air conditioning, warm air heating, controls and motors, boilers, ventilation, evaporative cooling, fuel piping, water piping, steam and hot water systems, chilled water and condensing water systems, testing, balancing, inspection, sizing, estimating, and OSHA safety.

The CR-39 air conditioning and refrigeration trade exam includes 80 questions, allows 210 minutes, and requires a minimum passing score of 70%. The exam content outline includes refrigeration with 12 items, air conditioning with 12 items, warm air heating with 12 items, controls and motors with 8 items, boilers with 4 items, ventilation with 4 items, evaporative coolers with 4 items, fuel piping with 5 items, water piping with 5 items, steam, hot water, chilled water, and condensing water with 5 items, testing, balancing, and inspection with 5 items, and sizing and estimating with 4 items.

The three references in this package support major code and safety portions of the exam. The International Mechanical Code, 2018 helps candidates review equipment installation, ventilation, duct systems, combustion air, mechanical system safety, refrigeration awareness, boilers, hydronic topics, and mechanical system provisions. The International Fuel Gas Code, 2018 supports preparation for fuel gas piping, gas-fired appliances, combustion air, venting, regulators, shutoff valves, gas pressure, and safe installation practices. OSHA 29 CFR Part 1926 supports preparation for construction safety topics.

Residential and commercial HVAC questions may involve different jobsite conditions, but the study approach is similar. Candidates should understand the system being described, identify whether the question points toward safety, mechanical code, fuel gas code, or trade knowledge, and then use the correct reference efficiently. The highlighted and tabbed format is intended to support that process during preparation.

Open Book Test

The Arizona Air Conditioning and Refrigeration Residential / Commercial Contractor (CR-39) trade exam is an open-book test. This package is focused on the books allowed into the exam room for this classification: Code of Federal Regulations - 29 CFR Part 1926 (OSHA), International Fuel Gas Code, 2018, and International Mechanical Code, 2018.

Open-book testing rewards candidates who know their references before exam day. The highlighted and tabbed format can make study sessions more organized, but candidates should still practice using the books. Study should include locating definitions, reviewing major chapters, finding equipment installation rules, checking combustion air requirements, reviewing fuel gas provisions, and becoming comfortable with the table of contents, index, tables, and chapter structure.

Reference materials may be highlighted, underlined, annotated, and indexed before the examination session. References may not be written in during the exam. Additional loose or attached papers are not permitted with approved references. Permanent tabs are allowed. Temporary removable tabs are not allowed. Candidates may use a silent, nonprinting, non-programmable calculator in the examination center.

For the CR-39 exam, candidates should know when to use each reference. OSHA is used for jobsite safety and construction hazard questions. The International Mechanical Code is used for mechanical equipment, ventilation, refrigeration, duct systems, combustion air, boilers, hydronic topics, and system installation provisions. The International Fuel Gas Code is used for fuel gas piping, gas-fired appliances, regulators, shutoff valves, venting, appliance connections, and fuel gas safety.

Licensing Steps

Arizona contractor licensing is handled through the Arizona Registrar of Contractors. Candidates should begin by selecting the correct license classification for the work they plan to perform. The CR-39 classification applies to residential and commercial air conditioning and refrigeration contractor work within the allowed Arizona license scope.

After selecting the correct classification, candidates should review the examination requirements connected to the license. The CR-39 trade exam is one part of the licensing process. Contractor applicants may also need to complete the Arizona business management or statutes and rules requirement, application requirements, qualifying party requirements, bonding requirements, experience requirements, and other items required by the Arizona Registrar of Contractors.

Exam preparation and application preparation should be treated as separate tasks. Exam preparation focuses on HVAC and refrigeration trade knowledge, open-book reference navigation, OSHA safety, mechanical code, fuel gas code, refrigeration, air conditioning, heating, controls, motors, ventilation, fuel piping, water piping, boilers, testing, balancing, sizing, estimating, and inspection topics. Application preparation focuses on state forms, business information, qualifying party documentation, bond requirements, fees, and licensing submission requirements.

This highlighted and tabbed books package supports the exam preparation side of the process. It gives candidates the listed exam-room references in an organized format so they can study directly from the books they plan to use. Candidates should use the books consistently before exam day so the tabs, highlighting, chapter layout, and code organization become familiar.

State Requirements

The Arizona Registrar of Contractors issues licenses by classification. Residential classifications apply to residential work, commercial classifications apply to commercial work, and dual classifications may apply when a contractor qualifies for both residential and commercial work. The CR-39 classification is the residential/commercial air conditioning and refrigeration contractor classification.

The air conditioning and refrigeration classification is connected to installation, alteration, and repair of air conditioning, refrigeration, ventilation, warm air heating, evaporative cooling, duct systems, and related mechanical systems within the allowed Arizona license scope. Candidates preparing for the CR-39 exam should understand the code, safety, and trade knowledge involved in both residential and commercial HVAC and refrigeration work.

CR-39 candidates should understand the limits of their classification and work within the scope issued by the state. Work outside the classification may require another properly licensed contractor. HVAC and refrigeration work may involve coordination with mechanical systems, electrical systems, plumbing systems, fuel gas systems, building code provisions, fire safety requirements, ventilation systems, and jobsite safety rules.

Passing the trade exam is not the same as receiving a license. Applicants are responsible for meeting the full Arizona licensing requirements that apply to the classification, qualifying party, business entity, bond, application, and related state requirements. This package supports preparation by providing the listed highlighted and tabbed books allowed into the CR-39 exam room.

Reference Books

• Code of Federal Regulations - 29 CFR Part 1926 (OSHA)
  A highlighted and tabbed exam-room reference used to review federal construction safety standards, including personal protective equipment, ladders, tools, electrical hazard awareness, material handling, fall hazards, housekeeping, equipment safety, and jobsite hazard recognition.
• International Fuel Gas Code, 2018
  A highlighted and tabbed exam-room reference used to review fuel gas piping, gas-fired appliances, combustion air, venting, gas pressure, shutoff valves, regulators, appliance connections, equipment installation, and fuel gas safety requirements.
• International Mechanical Code, 2018
  A highlighted and tabbed exam-room reference used to review mechanical system provisions, HVAC equipment installation, ventilation, duct systems, refrigeration awareness, combustion air, boilers, hydronic topics, safety controls, and mechanical system requirements.

Exam Room Approved Books

• Code of Federal Regulations - 29 CFR Part 1926 (OSHA)
  Allowed into the exam room for construction safety, personal protective equipment, ladders, tools, material handling, fall hazards, electrical hazard awareness, and jobsite safety questions.
• International Fuel Gas Code, 2018
  Allowed into the exam room for fuel gas piping, gas-fired appliances, combustion air, venting, shutoff valves, regulators, equipment connections, and fuel gas safety topics.
• International Mechanical Code, 2018
  Allowed into the exam room for mechanical code questions involving HVAC equipment, refrigeration awareness, ventilation, duct systems, combustion air, boilers, hydronic topics, equipment clearances, and safety controls.

Test Information and Study Materials

The Arizona CR-39 exam requires preparation across refrigeration, air conditioning, warm air heating, controls, motors, boilers, ventilation, evaporative cooling, fuel piping, water piping, steam and hot water concepts, chilled water and condensing water awareness, testing and balancing, sizing and estimating, inspection, and OSHA safety. Candidates should use the highlighted and tabbed books as part of a broader study plan that includes trade review and reference practice.

International Mechanical Code preparation should include mechanical equipment installation, ventilation requirements, combustion air, duct systems, refrigeration-related provisions, boilers, hydronic system topics, equipment clearances, access, safety controls, exhaust systems, and system coordination. Candidates should practice locating chapters and sections related to equipment, ventilation, ductwork, combustion air, and mechanical safety.

International Fuel Gas Code preparation should include gas piping materials, sizing awareness, appliance connections, combustion air, vent connectors, chimneys, regulators, shutoff valves, gas pressure, equipment installation, clearances, and fuel gas safety. Residential and commercial HVAC questions may connect fuel gas requirements to furnaces, boilers, unit heaters, rooftop units, and other gas-fired equipment.

OSHA preparation should include personal protective equipment, ladder safety, fall hazards, hand and power tools, material handling, housekeeping, electrical hazard awareness, excavation awareness when applicable, and general construction safety. HVAC and refrigeration work can involve rooftop equipment, ladders, lifting, sharp sheet metal, electrical components, fuel gas, rotating equipment, refrigerant system components, and active construction sites.

Refrigeration preparation should include compressors, condensers, evaporators, metering devices, refrigerant piping, pressure and temperature relationships, heat transfer, coils, fans, condensate awareness, system charging awareness, and system operation. Strong trade knowledge helps candidates recognize the topic of the question even before opening a reference.

Air conditioning preparation should include split systems, packaged equipment, air handlers, coils, condensate, duct systems, filters, airflow, thermostats, disconnect awareness, service access, equipment location, and cooling system operation. Candidates should understand how equipment, airflow, refrigerant circuit operation, and code-compliant installation work together.

Warm air heating preparation should include gas-fired furnaces, burners, heat exchangers, blower operation, ignition systems, safety controls, limit controls, combustion air, venting, fuel gas piping, thermostats, and duct system coordination. These topics often connect the International Mechanical Code and International Fuel Gas Code.

Ventilation and duct preparation should include supply air, return air, exhaust air, duct routing, air movement, dampers, registers, grilles, diffusers, combustion air, ventilation requirements, and code-based system provisions. Candidates should use the International Mechanical Code to strengthen their understanding of mechanical ventilation and duct-related requirements.

Boiler and hydronic preparation should include hot water system awareness, pressure relief, pumps, valves, expansion tanks, controls, gauges, piping loops, heat transfer, and system protection. Although this package includes only the books allowed into the exam room, candidates should still study the trade concepts behind boiler and hydronic questions.

Testing, balancing, and inspection preparation should include airflow checks, system operation, equipment startup awareness, temperature difference awareness, ventilation performance, filter condition, safety controls, fuel gas safety, combustion air, venting, and installation inspection. The CR-39 exam can reward candidates who understand both code requirements and system performance.

Using highlighted and tabbed books effectively requires practice. Candidates should spend time opening each reference, locating the highlighted areas, reviewing the tabs, reading surrounding code language, and understanding why each section matters. Tabs and highlighting are tools for navigation, not a substitute for learning the material.

During study, candidates should practice identifying the best reference for each topic. A safety question may point to OSHA. A gas-fired equipment question may point to the International Fuel Gas Code. A ventilation, duct, refrigeration, mechanical equipment, boiler, or combustion air question may point to the International Mechanical Code. Knowing which book to open first can save valuable exam time.

How 1 Exam Prep Helps You Reach Your Goal

1 Exam Prep helps Arizona contractor candidates prepare with organized study support, trade-focused review, reference navigation tools, and practical exam preparation resources. For the Arizona Air Conditioning and Refrigeration Residential / Commercial Contractor (CR-39) exam, this highlighted and tabbed package supports candidates by providing the listed books allowed into the exam room in an organized format.

Many experienced HVAC and refrigeration professionals understand field work but still need support with the open-book testing format. Contractor exams require careful reading, time management, and the ability to connect each question to the correct code, safety standard, or trade concept. Highlighted and tabbed references can help candidates build a more efficient study routine and become more comfortable navigating the books.

1 Exam Prep prepares books with the exam experience in mind. The goal is to make it easier for candidates to study from the same references they will rely on during the exam. Candidates can use the tabs and highlighting to review major subjects, practice locating information, and build confidence with the organization of OSHA, the International Fuel Gas Code, and the International Mechanical Code.

This package is promotional but practical. It does not guarantee a passing score, license approval, state approval, or any exam outcome. It gives candidates organized exam-room reference books that can support study, review, and open-book preparation for the Arizona CR-39 residential/commercial air conditioning and refrigeration contractor exam.

FAQ Section

Who is this package for?

This package is for candidates preparing for the Arizona Air Conditioning and Refrigeration Residential / Commercial Contractor (CR-39) exam who need the listed highlighted and tabbed books allowed into the exam room.

What books are included in this package?

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

Are these books highlighted and tabbed?

Yes. This package is for highlighted and tabbed books allowed into the exam room for the Arizona CR-39 residential/commercial air conditioning and refrigeration contractor exam.

How long should I allow for order processing?

Please allow up to 15 business days for tabbed and highlighted books allowed into exam package orders.

Is the Arizona CR-39 exam open book?

Yes. The Arizona CR-39 residential/commercial air conditioning and refrigeration contractor trade exam is open book and allows approved references into the examination center.

Which books are allowed into the CR-39 exam room?

The allowed exam-room books for this package are OSHA 29 CFR Part 1926, International Fuel Gas Code, 2018, and International Mechanical Code, 2018.

How many questions are on the Arizona CR-39 exam?

The Arizona CR-39 air conditioning and refrigeration trade exam includes 80 questions.

How much time is allowed for the exam?

The exam allows 210 minutes.

What score is needed to pass?

The minimum passing score is 70%.

What subjects should I study for the CR-39 exam?

Candidates should study refrigeration, air conditioning, warm air heating, controls, motors, boilers, ventilation, evaporative cooling, fuel piping, water piping, steam and hot water concepts, chilled water and condensing water awareness, testing, balancing, inspection, sizing, estimating, and OSHA safety.

What is the difference between C-39 and CR-39?

The C-39 classification is commercial, while the CR-39 classification is residential/commercial. The CR-39 path applies to candidates preparing for both residential and commercial air conditioning and refrigeration work within the allowed Arizona license scope.

Do highlighted and tabbed books replace studying?

No. Highlighted and tabbed books support reference navigation, but candidates should still study the trade topics, practice using the references, and review exam-style questions before test day.

Does this package guarantee that I will pass?

No. This package supports preparation and reference navigation. It does not guarantee a passing score, license approval, state approval, or any exam outcome.