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A C-12 Earthwork and Paving license (16 CCR §832.12) covers cutting, filling, excavating, grading, trenching, and backfilling a site, plus mixing, placing, and finishing paving or other surfacing materials — including the use of explosives when needed. CSLB’s classification detail also folds in drainage installation and erosion-control work tied to grading, since moving earth to create positive drainage is inseparable from the grading itself. This course covers the CSLB-outline C-12 trade exam plus Law & Business: a full study guide, 4 practice exams, and an explanation for every answer. Read the full C-12 License Guide for licensing requirements and the exam content breakdown.