Under most Home Owner Builder rules, which trades usually require licensed professionals?

• A. Electrical, plumbing, and sometimes HVAC; other trades may require licensed supervision depending on local rules.
• B. All trades require licensed professionals.
• C. No trades require licensing.
• D. Only carpenters require licenses.

Answer: (A)

The key idea is that electrical and plumbing work, and often HVAC, are regulated trades that typically must be performed by licensed professionals under Home Owner Builder rules because they affect safety, fire risk, and overall system integrity. Permits and inspections usually hinge on using licensed trades for these tasks, and HVAC may also require a licensed technician in many places. Other trades may or may not require licensure depending on local rules, and some tasks can be done by the homeowner or require only supervision.

This is why the best choice points to electrical, plumbing, and sometimes HVAC as the trades that usually require licensed professionals. The other options aren’t correct because licensing isn’t universal across all trades, not all trades require licenses, and licensing isn’t limited only to carpenters.