The Contractors State License Board (CSLB) protects California consumers by licensing and regulating the states construction industry. CSLB was established in 1929 and today licenses about 290,000 contractors in 44 different license classifications.
California State License Board
9821 Business Park Drive
Sacramento, CA 95827
916-255-3915
Fax: 916-255-1395
cslb.ca.gov