The Arizona Air Conditioning and Refrigeration Commercial Contractor (C-39) Books Allowed into Exam Package from 1 Exam Prep is specifically designed for contractors preparing for the Arizona Air Conditioning and Refrigeration Commercial Contractor (C-39) licensing exam. This package includes the official references allowed inside the testing center and provides the essential knowledge needed for commercial HVAC systems, refrigeration equipment, fuel gas applications, mechanical system installation, and OSHA safety compliance.
Whether you work in commercial HVAC installation, refrigeration systems, heating and cooling equipment, ventilation systems, fuel gas piping, mechanical service work, or large-scale commercial climate control projects, this package helps you prepare for Arizona’s open-book exam format while strengthening your understanding of industry-standard mechanical and safety requirements.
Because the Arizona C-39 exam is an open-book exam, success depends heavily on your ability to efficiently navigate technical references and quickly locate important information during the exam. This package helps you become familiar with the approved reference materials so you can improve speed, efficiency, and confidence on test day.
📚 Books Included – Allowed in the Exam
Code of Federal Regulations – 29 CFR Part 1926 (OSHA)
International Fuel Gas Code (IFGC), 2018 Edition
International Mechanical Code (IMC), 2018 Edition
These are the official references permitted inside the Arizona testing center for the Air Conditioning and Refrigeration Commercial Contractor (C-39) exam.
The OSHA 29 CFR Part 1926 regulations provide comprehensive safety standards related to construction operations, mechanical equipment installation, fall protection, confined space procedures, employee protection requirements, and OSHA compliance practices.
The International Fuel Gas Code (IFGC), 2018 Edition establishes standards related to fuel gas piping systems, combustion air requirements, gas appliance installations, venting systems, and fuel gas safety procedures.
The International Mechanical Code (IMC), 2018 Edition provides essential standards related to HVAC systems, refrigeration equipment, ventilation systems, ductwork installation, heating and cooling equipment, energy efficiency requirements, and commercial mechanical code compliance.
Key topics include:
Commercial HVAC system installation
Air conditioning and refrigeration systems
Fuel gas piping and appliance standards
Ventilation and ductwork requirements
Mechanical equipment installation
Heating and cooling system safety
Commercial refrigeration applications
Inspection and compliance procedures
Construction materials and methods
OSHA construction safety regulations
Mechanical and fuel gas code compliance
🔧 What This Package Does for You
Built for Arizona’s Open-Book Exam Format
The Arizona Air Conditioning and Refrigeration Commercial Contractor (C-39) exam is designed to test your ability to efficiently navigate technical references and quickly locate important information—not simply memorize code requirements and safety regulations.
This package helps you:
Become familiar with the structure of the approved references
Learn how to quickly locate answers
Improve speed and efficiency during testing
Build confidence using the actual exam-approved materials
Strengthens HVAC & Refrigeration Knowledge
Develop a strong understanding of:
Commercial HVAC installation standards
Refrigeration and cooling systems
Fuel gas piping and appliance requirements
Ventilation and airflow systems
Mechanical equipment safety procedures
Commercial mechanical code compliance
OSHA safety standards for HVAC construction
Industry-Relevant & Practical
The included OSHA, IFGC, and IMC references are not only valuable for exam preparation, but also serve as practical field resources for contractors working on commercial HVAC, refrigeration, ventilation, and mechanical system projects throughout Arizona.
🎯 Why This Package Works
Includes the Exact Books Allowed in the Arizona Exam
Study directly from the official references permitted inside the testing center.
Designed for Faster Code Navigation
Helps improve your ability to quickly locate technical information under exam conditions.
Supports Both Exam Success & Field Application
Strengthens your understanding of commercial HVAC systems, refrigeration standards, fuel gas requirements, and mechanical code compliance used in real-world projects.
Focused & Efficient
Provides the exact core references needed for Arizona C-39 exam preparation without unnecessary materials.
🚀 Who This Package Is For
Contractors preparing for the Arizona Air Conditioning and Refrigeration Commercial Contractor (C-39) License
Commercial HVAC contractors
Refrigeration system installers
Mechanical service professionals
Ventilation and ductwork specialists
Heating and cooling system contractors
Contractors seeking to improve open-book exam efficiency
🚀 Why Choose 1 Exam Prep
At 1 Exam Prep, we specialize in helping contractors pass licensing exams and build successful businesses in the construction industry. Our exam packages are designed around:
Actual Arizona licensing requirements
Real-world construction knowledge
Open-book exam navigation strategies
Industry-standard code references
Proven contractor-focused learning systems
We help contractors prepare not only to pass the exam, but also to perform successfully in the field after licensure.
💡 Important Exam Insight
The Arizona Air Conditioning and Refrigeration Commercial Contractor (C-39) Exam is an open-book exam, meaning approved reference materials may be brought into the testing center.
However, successful candidates understand that passing is not about memorizing every code section or mechanical standard—it’s about knowing how to efficiently navigate the references under time pressure. Becoming familiar with the organization and layout of OSHA 29 CFR Part 1926, the International Fuel Gas Code, and the International Mechanical Code can significantly improve exam performance.