When must a building permit for an on-site sewage system be obtained?

• A. Before Installation of a New System On A Lot
• B. Before Doing A Material Repair Or Alteration Of An Existing System
• C. Both Of The Above
• D. After Construction Begins

Answer: (C)

A permit is required for on-site sewage work whenever you’re starting a new system or making substantial changes to an existing one. For a new system on a lot, you must obtain the permit before installation to verify the site is suitable, the design meets current codes, and inspections can ensure proper placement and functioning. If you need to perform a material repair or alteration on an existing system, you also need a permit so the changes can be reviewed and compliant with standards. Because permits confirm safety, design, and regulatory compliance, they must be in place before any construction begins or before making significant repairs. That’s why the correct approach covers both scenarios.