California Electrical (C-10) Contractor License

The California Electrical (C-10) contractor license allows you to place, install, erect or connect any electrical wires, fixtures, appliances, apparatus, raceways, conduits, solar photovoltaic cells or any part thereof, which generate, transmit, transform or utilize electrical energy in any form or for any purpose.

How to get the Electrical (C-10) contractor's license in California?

  1. Determine Eligibility: Each license requires a qualifier who directly supervises and controls the construction operations conducted under the license. Must be at least 18 years old and have four years minimum journeyperson, foreperson, supervising employee, or contractor work experience, in the last 10 years, in the Electrical (C-10) trade.
  2. Verifying Work Experience: After meeting the basic eligibility requirements, the qualifier could be randomly selected to provide documentation that they meet the minimum work experience requirements. Having this documentation ready beforehand can make this process easier if your application is selected for review. The experience listed on the application must be verifiable, and people with firsthand knowledge of that experience must certify the accuracy of the information provided to CSLB on the Certification of Work Experience form.
  3. Complete Application: Must fill out the Original Contractor, Additional Classification, or Replacing the Qualifying Individual application form.
  4. Submit Application and Required Fees: For the current list of fees visit the California CSLB Fees page .
  5. Fingerprint Requirement after CSLB Review of Application: For information on fingerprinting, visit the CSLB Fingerprinting Requirement page.
  6. Schedule the Exams: Once the application is submitted the CSLB will send you a 'Notice to Appear for Examination." Upon receipt, the business exam and a Electrical (C-10) exams must be scheduled and passed.
  7. Contractor Bond: All applicants must submit to CSLB a contractor bond or cash deposit payable to CSLB in the amount of $15,000. CSLB does not issue bonds.

The CSLB will either issue your license or contact you if they need further information.

California California Electrical (C-10) Contractor License Exam Prep Courses

California Electrical (C-10) Contractor License Exam

Below are the specifications (test type, academic content, etc.) for each exam needed to get the Electrical (C-10) contractor's license in California.

California Electrical (C-10) Exam

  • Testing Method: Computer-based testing; closed book
  • Testing Company: CSLB
  • Types of Questions: Multiple choice
  • Subjects Involved:
    • Planning and Estimating (24%)
      • Existing system evaluation
      • Plan and specification interpretation
      • Electrical calculations
      • Code requirements
      • Material selection
      • Energy production and storage project planning (photovoltaic, wind, generators, batteries, capacitors)
    • Rough Wiring (26%)
      • System layout
      • Clearance and accessibility requirements
      • Raceway and panel installation
      • Wire and equipment installation
      • Grounding and bonding
      • Energy production and storage rough wiring (photovoltaic, wind, generators, batteries, capacitors)
    • Finish Wiring and Trim (9%)
      • Finish device placement and installation
      • Motor and equipment installation
      • Wire and equipment labeling
      • Trims and sealants
      • Energy production and storage finish wiring (photovoltaic, wind, generators, batteries, capacitors)
    • Startup, Troubleshooting, and Maintenance (21%)
      • System energizing and testing
      • Common electrical problems
      • Location, repair, and replacement of inoperable electrical wires/components
      • Selection and use of electrical testing equipment
      • Energy production and storage system performance (photovoltaic, wind, generators, batteries, capacitors)
    • Safety (20%)
      • Lockout/tagout procedures
      • Personal protective equipment (PPE)
      • Tools/equipment
      • Hazardous materials and job site environments
  • CSLB Electrical (C-10) Study Guide

California Law and Business Exam

  • Testing Method: Computer-based testing; closed book
  • Testing Company: CSLB
  • Types of Questions: Multiple choice
  • Subjects Involved:
    • Business Organization (10%)
      • Company organization
      • Project organization
    • Business Finances (15%)
      • Cash management
      • Budget and planning
      • Taxes
      • Financial reporting
    • Employment Requirements (12%)
      • Employment regulations
      • Evaluation and record-keeping
      • Payroll
    • Bonds, Insurance, and Liens (10%)
      • Bonds
      • Workers’ compensation insurance
      • Liens and other remedies
      • Other insurance
    • Contract Requirements and Execution (23%)
      • Bidding
      • Cost control
      • Contracts
      • Payments
    • Licensing Requirements (8%)
      • Business license
      • Contractor’s license
      • Activity regulation
    • Safety (15%)
      • Training and reporting requirements
      • General safety
      • Hazardous/unknown materials
    • Public Works (7%)
      • Prevailing wage requirements
      • Bonding requirements
      • Insurance requirements
  • CSLB Law and Business Study Guide

California Electrical (C-10) Contractor Book Set

The book set includes all source references for the California Electrical (C-10) Contractor exams. You can use these books to study for the exams but you are not allowed to bring these books in with you to the testing center. These tests will be closed-book. Orders placed before 2 PM are shipped the same day via UPS and a tracking number is emailed before 3 PM.


    Sales price: $1,705.16

    Sales price: $1,805.16

California Electrical (C-10) Contractor Exam Books

California Law and Business Exam Books