California CSLB License Application & Examination Preparation Original Application Exam Study Guides
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Core Trades

Plumbing, electrical, HVAC, concrete, earthwork, insulation, roofing, and weatherproofing.

Coordinate systems

Plumbing, electrical, HVAC, concrete, earthwork, roofing, insulation, and weatherproofing interact.

Protect life-safety functions

Relief valves, GFCI, ventilation, combustion, drainage, and fire separation are not cosmetic.

Build water outward

Exterior layers and flashings should direct water to the exterior.

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