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State files updated Oct 27, 2026
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C10 Electrical License (California)

California has 28,129 active C10 Electrical holders in the state file as of 2026-10-261, the 2nd-largest of 64 classes with at least 200 holders. 885 of them expire by 2026-12-26.

Active holders
28,129
12.0% of active California licenses
Expiring by 2026-12-26
885
3.1% of holders
Median bond on file
$25,000
28,118 bonds
Workers' comp exempt
50.1%
of 28,129 with WC status

What does the California Electrical license require?

C-10 Electrical Contractor (installs/connects wiring, fixtures, raceways, solar PV). C-10 active renewals carry +$20 ($470 sole / $720 other).2

Exam

Two exams: (1) Law & Business and (2) trade exam for the classification (no trade exam for C-61).3

Bond

$25,000 contractor bond (or $25,000 cashier's check).1

All California license requirements

How many C10 contractors are exempt from workers' comp?

14,098 of 28,129 active C10 holders with a recorded status (50.1%) filed an exemption1, against 48.7% across all California classes.

How do you check a C10 license?

Search by license number or business name on the California license lookup, which reads the same state file.

Sources

  1. CA CSLB License Master (cslb.ca.gov data portal) (cslb.ca.gov, 2026-10-26)
  2. Contractors State License Board (CSLB): classes (cslb.ca.gov)
  3. Contractors State License Board (CSLB): exam (cslb.ca.gov)