Code Administration, Permits, and Inspection
Code Administration, Permits, and Inspection
This domain tests how work is authorized, inspected, and closed out. Expect questions on permits, plan review, rough-in and final inspections, and corrections.
Core rules
- A permit is required before installing, altering, or replacing most plumbing systems; minor repairs may be exempt only where the code says so.
- Submit plans and specifications when required; the code official may approve, conditionally approve, or reject them.
- Rough-in inspection occurs after the DWV and water piping are installed and tested but before concealment; final inspection occurs after fixtures, trim, and testing are complete.
- Work must not be concealed until inspected; the inspector must have access, and approved plans must be on site.
- Corrections must be made and reinspected; a certificate of occupancy or final approval closes the permit.
Worked example
A remodel adds a basement bathroom. The permit is issued, the DWV is run, and the water lines are pressure tested. The rough-in inspection is requested before drywall. After the inspection passes, drywall is installed, fixtures are set, and a final inspection is requested. If the rough-in were covered first, the inspector could require removal of the drywall.
Traps that cost marks
Starting work without a permit, covering rough-in, missing the final inspection, using unlisted materials, and failing to keep approved plans accessible.