How to get a Low-Voltage license in California
The full California low-voltage licensing path — experience hours, required exam, fees, and where to apply. Verified 5/26/2026.
Career prep, not a license.
Prep for the California Low-Voltage exam
Low-Voltage 101 — Start Here (Free) — self-paced lessons, practice exam, certificate of completion.
License details
C-7 Low Voltage Systems Contractor
Verified 5/26/2026
Experience required
4 years journey-level experience
Required exam
Law & Business + C-7 Trade (PSI)
Licensing authority
Notes & fees
Covers communication, sound, security, fire-alarm signaling under 91V.
Frequently asked questions
How do I get a low-voltage license in California?
You need 4 years journey-level experience. Then pass the Law & Business + C-7 Trade administered by PSI. Applications go through the Contractors State License Board (CSLB).
What exam do I need to pass?
Law & Business + C-7 Trade — administered by PSI.
How much experience do I need?
4 years journey-level experience
What about fees, insurance, and continuing education?
Covers communication, sound, security, fire-alarm signaling under 91V.
Other low-voltage licensing guides
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