To get a C-10 electrical contractor license in California, you need at least four years of journey-level or higher electrical experience, a passing score on the Contractors State License Board’s two-part exam, a cleared fingerprint background check, a $25,000 contractor’s bond, and workers’ compensation coverage or a valid exemption. The California C-10 electrical license requirements are administered by the Contractors State License Board (CSLB), and the full path from application to pocket card typically runs several months. Here’s what each stage demands.
Who Qualifies for the C-10
You need four years of experience in electrical work within the last ten years to sit for the exam. The CSLB counts time at the journey level, as a foreman, as a supervising employee, as a licensed contractor, or as an owner-builder. Apprenticeship hours, helper time, and general laborer work do not count toward the four years.1Contractors State License Board. Step 3: Qualifying Experience for the Examination
Journey level, in the board’s definition, means you can perform the trade without supervision or you’ve completed a formal apprenticeship. A foreman or supervising employee needs journey-level skills plus direct supervision of physical construction. Owner-builders must submit a separate Construction Project Experience form for each project used to demonstrate qualifications.1Contractors State License Board. Step 3: Qualifying Experience for the Examination
The person who qualifies the license can be the business owner, a responsible managing officer, or a responsible managing employee (RME). If you use an RME, that person must work at least 32 hours per week or 80 percent of the company’s operating hours, whichever is less.2California Legislative Information. California Business and Professions Code Section 7068 You also need a valid Social Security Number or Individual Taxpayer Identification Number.
The Application and Fee
The application package has two central forms: the Application for Original Contractor License and the Certification of Work Experience. The first collects your business entity type, ownership structure, and personnel details. The second documents your four years and must be signed by someone with direct knowledge of your work history, such as a former employer or supervisor.3Contractors State License Board. Application for Original Contractor License
Fill in employment dates and describe your electrical tasks in specific terms. Vague descriptions slow the review.4Contractors State License Board. Contractors State License Board Forms and Applications Mail the completed package to CSLB headquarters in Sacramento with the $450 nonrefundable application fee. Do not send the bond or the initial license fee yet.5Contractors State License Board. Applying for the Contractors Examination Once the board processes your documents, you’ll receive an acknowledgment letter with an identification number that lets you schedule the exam.
Passing the Two-Part Exam
The licensing exam has two parts, and you must pass both.6PSI Exams. California Contractors Examination State License Board (CSLB) Exam
The Law and Business section tests California construction law, lien rights, contract requirements, safety regulations, and the administrative side of running a contracting company. This is where a lot of first-time applicants stumble. The electrical material feels familiar; the legal and business material does not, and it takes dedicated study.
The C-10 trade section is weighted across five content areas:7Contractors State License Board. C-10 Electrical Study Guide
- Planning and Estimating, 28 percent: system evaluation, plan interpretation, electrical calculations, code requirements, material selection, and energy production and storage project planning.
- Rough Wiring, 27 percent: system layout, clearance requirements, raceway and panel installation, grounding and bonding, and energy storage rough wiring.
- Safety, 18 percent: lockout/tagout, personal protective equipment, tool safety, and hazardous materials awareness.
- Startup, Troubleshooting, and Maintenance, 16 percent: energizing and testing, common electrical problems, and testing equipment selection.
- Finish Wiring and Trim, 11 percent: device placement, motor installation, labeling, and energy production finish wiring.
Energy production and storage material shows up in every section, reflecting how much solar, battery, wind, and generator work is now part of the trade. If your four years were all conventional wiring, budget extra study for those topics.
Live Scan and Background Check
Once your application is accepted, the CSLB mails you a Request for Live Scan Service form. Every applicant, plus every officer, partner, owner, and RME listed on the license, must submit fingerprints electronically through an authorized Live Scan provider. Prints are checked against both California Department of Justice and FBI records.8Contractors State License Board. Step 6: Get Fingerprinted/Live Scan
Watch the deadline. You have 90 days from receiving the Live Scan packet to return the completed form to the CSLB. Miss it and the board can void your entire application, meaning you start over and pay the $450 fee again.8Contractors State License Board. Step 6: Get Fingerprinted/Live Scan A criminal record does not automatically disqualify you; the board weighs the nature and severity of any convictions.
Bond, Workers’ Comp, and the Initial License Fee
Every active license requires a $25,000 contractor’s bond written by a surety company licensed through the California Department of Insurance. That amount is not a per-job cap. It’s the total available across all jobs for the life of the bond.9Contractors State License Board. Bond Requirements The bond amount increased from $15,000 in January 2023 under Senate Bill 607.
If your license is qualified by an RME, or by a responsible managing officer who owns less than 10 percent of the company’s voting stock, an additional $25,000 Bond of Qualifying Individual is required. Each qualifier on the license carries their own bond.9Contractors State License Board. Bond Requirements A sole owner qualifying on their own behalf avoids this second bond.
California law requires every employer, including contractors, to carry workers’ compensation insurance even with a single employee. At the licensing stage, you either file a valid certificate of workers’ comp coverage or sign an exemption certifying you have no employees.10Contractors State License Board. Workers’ Compensation Requirements The moment you hire your first helper, the exemption stops working and you need coverage in place before that person starts.
After passing both exams, the CSLB sends instructions to submit your bond, proof of workers’ comp coverage or exemption, and the initial license fee. That fee is $200 for a sole owner or $350 for all other business types, including partnerships, corporations, and LLCs.11Contractors State License Board. Step 8: Issuing My License Once those items clear, the board issues your pocket card and certificate.
What the C-10 Lets You Do
The classification authorizes you to install, connect, and work on electrical wires, fixtures, appliances, raceways, conduits, battery energy storage systems, and photovoltaic solar energy systems. Anything that generates, transmits, transforms, or uses electrical energy falls within your scope of work, regardless of voltage.12Legal Information Institute. California Code of Regulations Title 16 Section 832.10 – Class C-10 – Electrical Contractor That covers commercial power distribution, residential panel upgrades, EV chargers, control and signaling systems, and battery storage tied to solar arrays.13Contractors State License Board. C-10 – Electrical Contractor
Renewing and Keeping the License Active
Active licenses expire every two years. Renewal fees are $450 for a sole owner and $700 for all other business types. Miss the expiration date and the CSLB adds a 50 percent delinquency surcharge, bringing the renewal to $675 or $1,050.14Contractors State License Board. Step 1: General Renewal Information
Any work performed while your license is lapsed is treated as unlicensed contracting. You have up to five years to renew an expired license, though there will be a gap in your record and you’ll owe the delinquent fee. Beyond five years, you start over with a new application and new exams.14Contractors State License Board. Step 1: General Renewal Information
If you want to keep the license but stop working temporarily, you can renew as inactive. Inactive renewal is cheaper ($300 sole owner, $500 non-sole owner) and suspends bond and workers’ comp obligations. You cannot take on any work while inactive, and reactivating requires a separate application.14Contractors State License Board. Step 1: General Renewal Information
Compliance Obligations You Take On With the License
Holding the C-10 comes with ongoing responsibilities that the exam previews but does not exhaust.
California Electrical Code
The current California Electrical Code (2025 edition) is based on the National Electrical Code 2023 edition, published by the National Fire Protection Association, with California-specific amendments. The NEC sets the technical benchmarks for how you design, install, and document electrical systems.
OSHA Electrical Safety
Federal workplace safety rules for electrical construction sit in 29 CFR Part 1926, Subpart K, covering wiring design and protection, lockout and tagging of circuits, hazardous locations, and equipment maintenance. Cal/OSHA enforces these standards in California and often adds its own requirements on top of the federal baseline.15Occupational Safety and Health Administration. 1926 Subpart K – Electrical
Lead Paint and Asbestos
Electrical work in buildings built before 1978 can disturb lead-based paint. Under the federal Renovation, Repair and Painting (RRP) Rule, your firm must be EPA-certified before doing renovation work in pre-1978 housing or child-occupied facilities, with at least one certified renovator on each project and all workers disturbing painted surfaces either certified or trained by a certified renovator.16U.S. Environmental Protection Agency. Renovation, Repair and Painting Program: Firm Certification EPA firm certifications last five years.
California also presumes asbestos is present in any building unless the owner can prove otherwise. Work that disturbs 100 square feet or more of asbestos-containing material requires asbestos certification and Cal/OSHA registration. Even for smaller jobs, you and your crew must complete 40 hours of asbestos training from a DOSH-approved trainer.17Contractors State License Board. Asbestos Open Book Exam
Penalties for Working Without a C-10
California treats unlicensed contracting as a criminal offense with escalating consequences. A first conviction carries a fine of up to $5,000 and up to six months in county jail. A second conviction rises to 20 percent of the contract price or $5,000 (whichever is greater), with a minimum of 90 days in jail. Third and subsequent convictions carry fines between $5,000 and $10,000 (or 20 percent of the contract price, if higher) and between 90 days and one year of imprisonment.
Those penalties also apply if you previously held a license that was revoked and continued working. The person who hired you while you were unlicensed is treated as a crime victim under California law and can seek restitution for their economic losses.