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Current codes Last updated September 21, 2026
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California exam prep

Written study guide mapped to the official outline, then four timed sittings at official length. You pay for 30, 60, or 90 days of access; the materials are the same. Confirm the live bulletin before you sit.

Trade exams (the license for the work)

A — General EngineeringStudy guide + 4 timed sittingsFrom $99B — General BuildingStudy guide + 4 timed sittingsFrom $99C-10 — ElectricalStudy guide + 4 timed sittingsFrom $99C-11 — ElevatorStudy guide + 4 timed sittingsFrom $99C-12 — Earthwork & PavingStudy guide + 4 timed sittingsFrom $99C-13 — FencingStudy guide + 4 timed sittingsFrom $99C-15 — Flooring & Floor CoveringStudy guide + 4 timed sittingsFrom $99C-16 — Fire ProtectionStudy guide + 4 timed sittingsFrom $99C-17 — GlazingStudy guide + 4 timed sittingsFrom $99C-2 — Insulation & AcousticalStudy guide + 4 timed sittingsFrom $99C-20 — HVACStudy guide + 4 timed sittingsFrom $99C-21 — Building Moving & DemoStudy guide + 4 timed sittingsFrom $99C-22 — Asbestos AbatementStudy guide + 4 timed sittingsFrom $99C-23 — Ornamental MetalStudy guide + 4 timed sittingsFrom $99C-27 — LandscapingStudy guide + 4 timed sittingsFrom $99C-28 — Lock & SecurityStudy guide + 4 timed sittingsFrom $99C-29 — MasonryStudy guide + 4 timed sittingsFrom $99C-31 — Traffic ControlStudy guide + 4 timed sittingsFrom $99C-32 — Parking & Highway ImprovementStudy guide + 4 timed sittingsFrom $99C-33 — Painting & DecoratingStudy guide + 4 timed sittingsFrom $99C-34 — PipelineStudy guide + 4 timed sittingsFrom $99C-35 — Lathing & PlasteringStudy guide + 4 timed sittingsFrom $99C-36 — PlumbingStudy guide + 4 timed sittingsFrom $99C-38 — RefrigerationStudy guide + 4 timed sittingsFrom $99C-39 — RoofingStudy guide + 4 timed sittingsFrom $99C-4 — Boiler & Steam FittingStudy guide + 4 timed sittingsFrom $99C-42 — Sanitation SystemStudy guide + 4 timed sittingsFrom $99C-43 — Sheet MetalStudy guide + 4 timed sittingsFrom $99C-45 — Sign InstallationStudy guide + 4 timed sittingsFrom $99C-46 — SolarStudy guide + 4 timed sittingsFrom $99C-47 — Manufactured HousingStudy guide + 4 timed sittingsFrom $99C-5 — Framing & Rough CarpentryStudy guide + 4 timed sittingsFrom $99C-50 — Reinforcing SteelStudy guide + 4 timed sittingsFrom $99C-51 — Structural SteelStudy guide + 4 timed sittingsFrom $99C-53 — Swimming PoolStudy guide + 4 timed sittingsFrom $99C-54 — Ceramic & Mosaic TileStudy guide + 4 timed sittingsFrom $99C-55 — Water ConditioningStudy guide + 4 timed sittingsFrom $99C-57 — Well DrillingStudy guide + 4 timed sittingsFrom $99C-6 — Cabinet & MillworkStudy guide + 4 timed sittingsFrom $99C-60 — WeldingStudy guide + 4 timed sittingsFrom $99C-61 — Limited SpecialtyStudy guide + 4 timed sittingsFrom $99C-7 — Low Voltage SystemsStudy guide + 4 timed sittingsFrom $99C-8 — ConcreteStudy guide + 4 timed sittingsFrom $99C-9 — DrywallStudy guide + 4 timed sittingsFrom $99

Business exam (second paper, not a trade)

This does not by itself let you bid electrical, plumbing, or building work. Many states require it in addition to a trade.

How to get licensed in California California hub