Construction Guys · Learn the work. Build your future.
General B, C-10 or C-36: which path fits the work you want to do?
By Construction Guys
Start with the work. What do you want your future company to be trusted to do? A whole remodel, electrical systems, or plumbing? The letters on a license should follow that answer.
See the three paths side by side
B · General Building
Think about the building as a connected project: plans, structure, finishes, several trades and the schedule that holds it together. General B has specific rules about which contracts it can take; it is not permission to take every kind of job.
C-10 · Electrical
Focus on electrical systems: wiring, equipment, fixtures, raceways and systems that use or distribute electrical energy. Study the calculations and the reasons behind protection and installation requirements.
C-36 · Plumbing
Focus on water supply and waste disposal, along with related piping, gas and water-heating work within the classification. Start by understanding how a complete system works before memorizing parts.
These are orientation summaries. Read the actual General B, C-10 and C-36 descriptions before deciding whether a particular project fits your license.
The General B detail people miss
Framing or carpentry projects have their own allowance. For other work, the rules distinguish prime contracts from subcontracts and generally require two unrelated trades besides framing or carpentry, unless an applicable specialty-license or prime-contract subcontracting provision applies. Do not just count every trade on a drawing and assume the answer is yes. CSLB’s building official guide explains the difference with examples.
Try this before buying a pile of study material
- Write three jobs you want to build a company around. Be specific: a complete remodel is a different business from specializing in one system.
- List the work you can already explain. Separate supervised learning from work you can perform at a qualified level.
- Compare the official classification and study guide. Mark unfamiliar topics. Those are the lessons you need first.
- Choose one primary study path. You can grow into other classifications later; give your first learning plan a clear target.
Starting with no experience?
You can learn construction vocabulary, math and business fundamentals now. CSLB generally requires four years of qualifying experience in the classification, with documented education or training credit possible under its rules. A book or a short class does not replace that requirement. Use CSLB’s experience guidance to understand the path that applies to you.
Choose a book you can actually use
Look at a sample lesson, try a calculation, and read an explained answer. If you can explain the idea back in your own words, you are studying actively.
Explore our General B, C-10 Electrical and C-36 Plumbing previews. Each package is $79.95 for a printed book with the matching PDF included. Optional license-preparation classes are being developed separately.
