Arizona Boilers, Steamfitting and Process Piping (C-1, C-4)

To become a licensed Boiler, Steamfitting and Process Piping Contractor in the state of Arizona, you are required to pass an open-book exam. We offer the books, tabs, and a fully online and inclusive educational course to prepare you to sit for the C-1, C-4 Contractors exam. @HomePrep is a National Leader in online education. With over 100,000 satisfied students and a course catalog of over 1,000 classes, we are here to help you - Invest in Yourself.

Arizona  Contractor License
Steps to Success

1. Purchase Books and other references.
2. Schedule and pass your state exams.
3. Submit your application, licensing fee, and proof of insurance to the State.

Features and Benefits:
Instructor Support
iOS/Android Compatible
Study Tips
Highlighting Guides
1 Year of Access
Practice Exams

Course Fee: $149.99

About This License

    Arizona C-1/C-4 (CR-4)
    This classification includes the installation, alteration, and repair of steam and hot water systems and boilers, including chimney connections, flues, refractories, burners, piping, fittings, valves, thermal insulation, and accessories; fuel and water lines from the source of supply to boilers; process and specialty piping and related equipment; pneumatic and electrical controls. If necessary, a new circuit may be added to the existing service panel or sub-panel. Excluded is the installation of a new service panel or subpanel.


Our training is written by Subject Matter Experts and built by Instructional Designers.

No Pass, No Pay

If you are not able to pass your exam on the SECOND attempt, we will refund your course fee. Conditions do apply.

Flexible & Self Paced

Simply login and out as needed. We track your progress.

Mobile Compatible

Our training is built on HTML5 - so you can take it with on your tablet or smartphone.

Lowest Price

We will beat ANY price by 10% for a similar program.

Requirements to Obtaining your License

  • 2 years of experience is required without trade exam OR 0 years with trade exam.
  • Please note that the Arizona Business Management exam is also required to be passed to obtain your contractor’s license.
  • Workers compensation insurance is required if you employ at least 1 person.

Must carry a Bond (Commercial)

  • If your Estimated Annual Volume (Per License Category) is less than $150,000 your current bond will need to be $2,500
  • If your Estimated Annual Volume (Per License Category) is $150,000 or more but less than $500,000 your bond as of July 1st 2014 will be $7,000
  • If your Estimated Annual Volume (Per License Category) is $500,000 or more but less than $1,000,000 your bond as of July 1st 2014 will be $17,500
  • If your Estimated Annual Volume (Per License Category) is $1,000,000 or more but less than $5,000,000 your bond as of July 1st 2014 will be $25,000
  • If your Estimated Annual Volume (Per License Category) is $5,000,000 or more but less than $1,000,000 your bond as of July 1st 2014 will be $37,500

Exam Review, Training, Education

The program takes you through each one of the reference books allowed into the exam, showing you exactly what to highlight. After your highlighting is completed with each book, you have the option take an online practice test to reinforce concepts presented.

Books and References for the Exam

The following references are recommended to study for the examination. They are available for purchase from our online contractor’s bookstore or by calling our office at 1-800-952-0910.

The following references ARE PERMITTED to be used during the exam.

  • OSHA Part 1926
  • 2015 International Mechanical Code
  • 2015 International Fuel Gas Code
  • The following references ARE NOT PERMITTED to be used during the exam.

  • Low Pressure Boilers
  • Modern Hydronic Heating for Residential and Light Commercial Buildings
  • IPT's Pipe Trades Handbook
  • Pipefitters Handbook

Exam Details

  • The fee for the exam is $66 when taking 1 portion or $116 when taking 2 portions (business management and the trade).
  • The exam has 50 questions and a time limit of 120 minutes.
  • A 70% is required to pass.
  • Topics on the exam include Boilers, Steam and Hot Water Piping, Gas Piping, Burners, Controls, Flues and Vents, Sizing and Estimating, Testing and Inspection, and Process Piping.
  • Examinations can be scheduled through PSI by calling 1-800-733-9267.

Continuing Education


Applying to Get Your License

To apply, contact the Arizona Registrar of Contractors at 1-602-542-1525. Licenses are good for 2 years. Licenses are generally granted within 40-60 days.

  • Application fee is $580

If you need assistance with the application process, @ Home Prep- a division of Stautzenberger College can help you by saving you time and money. With our years of experience, we can quickly and accurately submit your application to your state.

Reciprocity Agreement


  More Details