California Contractor License Requirements & Application Help | Contractor Licensing Inc
Get step-by-step help with the California contractor licensing process—classifications, exams, experience, insurance, and bonds. Contractor Licensing Inc handles filings, testing, and compliance.
In California, any construction project valued at $500 or more (labor and materials combined) requires a state-issued contractor license from the Contractors State License Board (CSLB). Licenses fall under three main categories — General Engineering (A), General Building (B), and Specialty (C) — with dozens of classifications for trades like electrical, plumbing, HVAC, and roofing.
California Contractor License Requirements & Application Help
Contractor Licensing Inc. has 18+ years of experience helping contractors prepare for CSLB exams, satisfy bond and insurance requirements, and file accurate applications.
California Contractor License Categories
A — General Engineering Contractor
Heavy civil works: infrastructure, utilities, roads, dams, and similar engineering projects.
B — General Building Contractor
Structures requiring two or more unrelated trades (e.g., residential/commercial build-outs).
B-2 — Residential Remodeling Contractor
Remodel/repair of existing homes (no structural framing or load-bearing work).
C — Specialty Classifications
Over 40 individual C-class trades — see the full list below.
Browse C-Class Trades
View all 40+ California Specialty (C) classifications
California Contractor License Bonds
Every CSLB-licensed contractor must maintain an active bond before the license can be issued, reactivated, or renewed (Business & Professions Code §7071.6).
| Bond | Amount | |
|---|---|---|
| Contractor License Bond (all classifications) | $25,000 | Apply Now |
| LLC Employee/Worker Bond | $100,000 | Ask us — required in addition to the standard bond |
| Bond of Qualifying Individual (RME/RMO) | $25,000 | Required if RME or non-owner RMO |
| Contractors Disciplinary Bond | $25,000+ | Apply Now |
| Farm Labor Contractor | Varies | Apply Now |
California County Bonds
| Jurisdiction & Bond | Amount | |
|---|---|---|
| Napa County — Sewer Contractor | Varies | Apply Now |
| Porterville — Encroachment Contractor | Varies | Apply Now |
| San Diego County — Well Contractor | $2,500 | Apply Now |
California Contractor License Reciprocity
🆕 NASCLA Reciprocity Opened Statewide (March 2025)
At its March 2025 board meeting, CSLB approved the NASCLA Commercial General Building Contractor exam for reciprocity purposes. This means a contractor licensed in any state — not just the four bilateral-agreement states — can apply for a CSLB General Building (B) license if they've passed the NASCLA exam.
Requirements still apply: the license must be in good standing for the last 5 years, the home state must accept CSLB qualifications for its own licensure, and CSLB staff make a case-by-case comparability determination. CSLB's Law & Business exam is still required, along with the license bond, fingerprinting, and workers' comp insurance if you have employees.
Bilateral Reciprocity (Pre-2025)
CSLB also maintains direct reciprocal agreements — by specific classification — with:
- Arizona — Registrar of Contractors (ROC)
- Louisiana — State Licensing Board for Contractors
- Nevada — State Contractors Board
- North Carolina — Licensing Board for General Contractors
How Bilateral Reciprocity Works
- License must be in good standing for the previous 5 years
- Classification must appear on CSLB's Reciprocal Classifications List
- Trade exam may be waived — CSLB Law & Business exam always required
- Louisiana & North Carolina "B" waivers additionally require a passing NASCLA score
Bond Info
CSLB Bond RequirementsReady to Get Your California Contractor License?
We handle classification selection, exam prep coordination, bond and insurance requirements, and a complete application filed correctly the first time.
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