Which action requires a permit?

• A. Replacing a water heater
• B. Replacing a faucet handle
• C. Replacing a small lever
• D. Replacing a backflow device on the water service

Answer: (A)

Permits are required for installing or replacing equipment that affects safety and the integrity of the plumbing and fuel/electrical systems. Replacing a water heater involves more than just swapping a tank; it connects to gas or electric services, requires proper venting or exhaust, correct water and drainage connections, and often seismic restraints and appropriate clearances. Because these elements must be inspected to ensure safe operation and code compliance, a permit is typically required for this work.

Replacing a faucet handle or a small lever is considered a minor repair that doesn’t change the safety-critical parts of the system, nor does it involve new venting or fuel connections, so it usually doesn’t require a permit. Replacing a backflow device on the service line can vary by jurisdiction, but the scenario here focuses on the major appliance change that clearly triggers permit requirements.