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    • Commercial

    The Arizona Registrar of Contractors (ROC) has simplified licensing by combining exams for specific classifications:

  • B-1, B-2, KB-1, KB-2: These classifications share a single, combined exam for licensing.
  • B-1 General Commercial Contractor: Construction and alteration of large commercial structures.
  • B-2 General Small Commercial Contractor: Commercial projects valued at $2,000,000 or less.
  • KB-1 Dual Building Contractor & KB-2 Dual Residential and Small Commercial KB-2 Commercial projects valued at $2,000,000 or less.

    • NASCLA Exam Accepted in 17 states as your Commercial Trades Exam

    The NASCLA exam offers a alternative to Arizona-specific trade exams for certain classifications. If you plan to work in other states this is the most common options do to its wide acceptance.

    • KB-1 Dual Building Contractor & KB-2 Dual Residential and Small Commercial: Applicants may take the NASCLA Commercial General Building Exam instead of the AZ ROC trade exam.
    • CR-11, C-11, and R-11 Electrical Classifications: The NASCLA Electrical Examination is available as an alternative to the state exam.NASCLA Electrical in Arizona

    Benefits of the NASCLA Exam: Streamlines licensing for contractors working in multiple states, reducing trades exam requirements for accepting states.

    For more details on the benefits of the NASCLA exams, visit how to obtain NASCLA in Arizona.

    Commercial/KB Dual

    Commercial/KB Dual "Includes Residential"

    Specialized exam preparation materials for Commercial and KB Dual contractors. KB Dual licensing is a Commercial and Residential Builder.

    The B-1, B-2, KB-1, KB-2 exams have been combined into one exam. Whichever of those classifications you want to obtain, you will take this new combined exam

    Explore KB Dual Prep
    NASCLA General Contractors

    NASCLA General Contractors Exam

    Comprehensive resources and study guides for the NASCLA General Contractors Exam, tailored specifically for B-1, B-2, KB-1, KB-2 licensing. The NASCLA Commercial Trades Exam is accepted in 17 states as your Commercial Trades Exam.

    Explore NASCLA General Prep

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