Welcome to the State of California

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CSLB offers resources and information to help contractors perform professionally, legally, and safely. Throughout this website, resources can be found in the left-hand menu.

CSLB Zero Tolerance Policy In Effect for Non-Compliant Electricians

Read about CSLB's zero-tolerance enforcement policy against any C-10 Electrical contractor who willfully employs an uncertified electrician to perform work as an electrician.

New Mechanics Lien Forms

Make sure you're using the updated (July 2012) Mechanics Lien forms.

Updating Your Contact Information

Make sure you notify CSLB when your contact information changes.

Contractor's Guide to Licensing

This section provides information about maintaining and changing your license.

Licenses for Limited Liability Companies (LLC)

CSLB now accepts applications for limited liability companies (LLC).

Dealing with License Problems

Learn how to solve private arbitration, judgment, and outstanding liability issues.

Dealing with a Complaint Filed Against You

What to do if a complaint is filed against you.

Consumer Information on Filing a Construction Complaint

How to Apply for Reciprocity

California has formal reciprocity agreements with the contractor licensing agencies of Arizona, Nevada, and Utah. Here, you can learn about the application process.

Reporting Unlicensed Activity or Illegal Advertising

Use CSLB's Lead Referral form to report active illegal activity.

Franchise Tax Board Nonresident Withholding Requirements

You may have state nonresident withholding responsibilities.

Make Your Voice Heard

Learn how you can attend and participate in Board or Committee meetings

Industry Expert Program

Find out how to become a CSLB Industry Expert.