Free Scholarship Offering!

Contractors State License Services is now awarding a scholarship every quarter towards a CSLS program.
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Who Needs A California Contractors License & What Kinds Are There?

In California, anyone who contracts to perform work on a project that is valued at $500 or more for labor and materials must hold a current, valid license from the CSLB. more...

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EPA Certified Renovator Training Available Now:
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CSLS Online Programs

In addition to the popular In-School Law & Trade Exam Preparation Program, Contractors State License Services offers these online options:

Practice Exams & Companion Guides

Existing students click here to LOGIN to STSONLINE practice Exams & Companion Guides


Contractor Online Learning & Training Center (COLT)

Existing students click here to LOGIN to Contractor Online Learning & Training (COLT)

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California Contractor Licensing

California Contractor Licensing

Contractors State License Services offers the most complete and comprehensive License Exam Preparation courses available in the state of California.  For over 20 years CSLS has helped more than 110,000 students prepare and pass the Contractors License Exam. Find out how we can help you too.

» ISLT - In-School Law and Trade
» Online Exam Preparation
» HSLT - Home Study Law and Trade
» Crash Course
» Exam Cram
» Construction Math Review