California Electrician Exam Prep

The Electrician Certification Unit (ECU) of the Division of Labor Standards Enforcement, part of the California Department of Industrial Relations, certifies electricians statewide. Certification applies to persons performing work as electricians for C-10 electrical contractors under Labor Code 108. California has no municipal journeyman electrician licenses; the DIR certification is the statewide credential, and contractors themselves are licensed separately by the Contractors State License Board (CSLB).

The General Electrician exam is administered by PSI Services LLC and is based on the electrical code adopted in California. The 2025 California Electrical Code (Title 24, Part 3), based on the 2023 NEC with California amendments, took effect January 1, 2026. The exam's reference edition may lag behind the newest code, so check the PSI Candidate Information Bulletin before you study.

The California ECU issues the following electrician certifications:

• General Electrician - All electrical work for a C-10 electrical contractor.
• Residential Electrician - Residential work only (4,800 on-the-job training hours).
• Fire/Life Safety Technician - Fire alarm and life safety systems.
• Voice Data Video Technician - Low-voltage communications systems.
• Non-Residential Lighting Technician - Lighting maintenance and retrofit.
• Electrician Trainee - Registration while accruing hours in an approved school.

The General Electrician certification exam is administered by PSI Services LLC at PSI test centers. It contains 100 questions with a time limit of 4 hours 30 minutes, and results are available immediately. The exam must be taken within 1 year of your eligibility notice. The ECU announced new exam scheduling procedures for exams taken on or after June 1, 2026, so check the ECU site for current instructions.

California requires a score of 70 percent to pass the General Electrician certification exam. Candidates who do not pass may retest after a 60-day wait by paying a $100 retest fee. Confirm the current passing standard with the ECU or in the PSI Candidate Information Bulletin before your exam date.

Typical requirements for California electrician certification include:

• 8,000 hours of work for an electrical contractor installing, constructing, or maintaining systems covered by the NEC (General Electrician).
• 4,800 on-the-job training hours for the Residential Electrician certification.
• A completed application submitted to the Electrician Certification Unit (ECU).
• Payment of the application and examination fees.

Requirements can change. Always confirm current certification rules with the official state licensing authority before applying.

The ECU application fee is $175 including one exam, $275 including two exams, or $375 including three exams. The retest fee is $100 after a 60-day wait. Certification renewal costs $100, and renewing an expired certification costs $200 and includes an exam retake. Fees change. Always confirm current amounts with the ECU before submitting payment.

A focused 6 to 8 week study plan works well for most candidates:

• Week 1-2: Review NEC structure and key articles (250, 210, 220, 240, 300-399) in the California Electrical Code context.
• Week 3-4: Work through grounding and bonding and load calculation practice problems.
• Week 5-6: Take full-length practice tests and review missed questions against the code.
• Week 7-8: Drill weak areas, build code navigation speed, and simulate the 4 hour 30 minute exam window.