CA · C-42 · Sanitation

Sanitation System Contractor

Septic systems, drain fields and sewage handling.

What you get

Built specifically for the C-42 exam.

32 C-42 course lessons across 8 modules
211 published Law & Business practice questions shared across California classifications
573 published C-42-specific trade practice questions
Timed practice and study mode with answer explanations
Spaced-repetition flashcards for every topic
Topic breakdowns from your practice work
Missed-question vault until every topic is mastered
14-day refund window when less than 25% of the course is completed

Full Access

$399

One-time payment, or 4 monthly payments of $100 ($400 total). Access starts once the first payment clears.

This purchase unlocks the Sanitation System Contractor course.
Refunds: within 14 days and under 25% course completion. Terms
Not included: CSLB application, exam or license fees. This is exam prep, not a license.
Questions? Contact support

FAQ

Septic systems, drain fields and sewage handling. It's issued by the California Contractors State License Board (CSLB) under the Sanitation category.

Study the CSLB C-42 exam outline, practice Law & Business and trade questions, review explanations, and drill flashcards on weak topics.

$399 one-time, or 4 payments of $100, for the course, practice questions, lessons and flashcards for your selected license.

The course separates shared California Law & Business study from C-42 trade study so candidates can focus on the right material.

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