To get licensed, you must:

• Be at least 18 years old
• Have 4 years of verified journey-level experience in your trade
• Submit a complete application to the CSLB
• Pass the Law & Business exam and a trade-specific exam
• Provide a contractor bond and insurance

Anyone performing construction work over $500 (labor + materials) must be licensed. This includes general contractors, specialty contractors, and subcontractors in trades like electrical, plumbing, and HVAC.

• Class B – General Building Contractor: Manages multi-trade projects
• Class C – Specialty Contractor: Single-trade work (plumbing, electrical, tile, etc.)
• Class A – Engineering Contractor: Projects requiring engineering expertise

You need 4 years of verified journeyman-level experience in the trade you want to be licensed for. This can include work under a licensed contractor, foreman, or as a supervisor, documented with signed verification forms.

Yes, if properly documented. Acceptable proof includes tax records, business invoices, signed client affidavits, or subcontractor agreements — all showing work matches your classification skills.

• Law & Business Exam: Covers contracts, safety, payroll, business management, and California construction law
• Trade Exam: Focuses on your specific classification skills and code requirements

• Use practice exams that simulate the CSLB format
• Study the CSLB Law & Business Guide
• Focus on trade-specific references and real-world scenarios
• Consider ExamFoundry Practice Exams to guide structured study

Typically 3–6 months, depending on application completeness, exam scheduling, and CSLB processing times.

California generally requires a full CSLB license. Some reciprocity may exist for certain trades, but most applicants must submit experience verification and pass exams.

• Application: $330
• Exam: $15 per exam
• Initial license fee: $200
• Bond: $15,000 (amount may vary by classification)

Search the CSLB database using your license number or business name. Always confirm a license is active and bonded before hiring or advertising.

Working without a license is a criminal misdemeanor in California. Penalties include fines, civil liabilities, and inability to enforce contracts.

Licenses renew every 2 years. You must pay renewal fees, maintain your bond, and continue required insurance or exemptions.

Yes. You can apply to add new classifications by providing experience verification and passing the corresponding trade exam.

• Missing or incorrect signatures on experience forms
• Incomplete or inaccurate work history
• Failing to submit required supporting documents