Arizona Dual Engineering (KA-) Contractor License

The Arizona Dual Engineering (KA-) Contractor License allows you to do the following work:

  • Fixed works
  • Streets
  • Roads
  • Power and utility plants
  • Dams
  • Hydroelectric plants
  • Sewage and waste disposal plants
  • Bridges
  • Tunnels
  • Overpasses
  • Public parks
  • Public right-of-ways
  • Construct and repair appurtenances (additions/enhancements) to residential structures
  • The following trades must be sub-contracted to licensed professionals in those fields:
    • Electrical
    • Plumbing
    • Air conditioning
    • Boilers
    • Swimming pool/spa
    • Water wells

This license covers the combined scope of the General Engineering (A-) and the General Residential Engineering (B-4) licenses.

How to get the Dual Engineering (KA-) contractor’s license in Arizona?

  1. Identifying a Qualifying Party - A sole proprietorship (individual), a partnership, limited liability company, or a corporation may apply for a Dual Engineering (KA-) contractor's license if they have a regularly employed person with the necessary experience, knowledge, and skills who serves as the qualifying party. All persons listed on the application must be 18 years of age or older.
  2. Experience Requirements - The license classifications requirements must be met or exceeded when applying for an Arizona Dual Engineering (KA-) contractor license. This license requires a minimum of 4 Years in the trade.
  3. Examination Requirements - The applicant must pass the SRE and Dual Engineering (KA-) trade exam. The minimum passing score is 70%. Once completed, the results must be submitted to the ROC.
  4. Background Checks - The applicant and qualifying party must submit copies of the payment transaction receipt from their background checks.
  5. Form a Legal Entity - Partnerships must register with the Arizona Secretary of State. LLC’s and corporations are required to register with the Arizona Corporation Commission.
  6. Bond - The applicant must obtain and submit proof of a license bond. They must also include all required fees and assessments with the license application. The required bond amounts are as follows:
    Gross Volume | Bond Amount
    $150,000 or less | $5,000
    In excess of $150,000 but not more than $500,000 | $15,000
    In excess of $500,000 but not more than one million | $25,000
    In excess of one million but not more than five million | $50,000
    In excess of five million but not more than ten million | $75,000
    Over ten million | $100,000
    The bond can be obtained from an Arizona-Licensed Surety Products Provider.
  7. Identification Forms - Both the Applicant and the Qualifying Party must submit a copy of their government-issued identification with the application. Driver Licenses and passports are acceptable forms of identification.
  8. Submit Application - Complete and submit a License Application Form to the Registrar by going to their physical location or by mailing the application to the Registrar of Contractors.

Arizona Dual Engineering (KA-) Contractor License Exam Prep Course

  • Login credentials emailed upon enrollment

    Unlimited access (no time limits)

    Lecture videos

    Practice questions

    Key concepts

    Step-by-step solutions to math problems


Before getting your Arizona Dual Engineering (KA-) Contractor License you will need to complete the Arizona Statutes and Rules Training Course and Exam (SRE).

Arizona Dual Engineering (KA-) Contractor License Exam

Below is all the information related to the exam including the content outline and the official reference list.

  • Optional: No
  • Testing Method: Computer-based testing
  • Type of Exam: Semi-open book
  • Testing Company: PSI©
  • Number of Questions: 109
  • Time Allowed: 240 Minutes
  • Minimum Passing Score: 70%
  • Subjects Involved (number of questions):
    • Sewers and Septic Systems (10)
    • Water Piping (5)
    • Gas Piping (5)
    • Paving (10)
    • Excavation, Compaction, and Grading (12)
    • Safety (10)
    • Steel (3)
    • Piles (5)
    • Concrete (10)
    • Traffic Control (6)
    • Electrical Transmission Lines (4)
    • Storm Water Runoff (9)
    • Solar Thermal (10)
    • Photovoltaic Systems (10)
  • PSI© Dual Engineering (KA-) Official Content Outline

Arizona Dual Engineering (KA-) Contractor Book Set

This set of books includes all required references for the Dual Engineering (KA-) exam. Orders placed before 2 PM are shipped the same day via UPS and a tracking number is emailed before 3 PM.


    Sales price: $2,610.77

    Sales price: $2,710.77

Arizona Dual Engineering (KA-) Contractor Exam Books

Books Allowed in Testing

Books Not Allowed in Testing