§ Chapter 25 IRC 2021
Plumbing Administration
9 entries from Chapter 25 of IRC 2021, organized by section number. Each entry covers what the code requires, why it exists, what inspectors look for, and common mistakes.
§ 01 Sections
All 9 entries.
Sorted by section number. Click any row for the full entry — answer, requirements, edition diff, related sections.
Section
Title
Question
P2501.1
A Plumbing Permit Is Usually Required Before New Plumbing Work Starts
P2501.1
Do I need a permit to replace or add plumbing in my house?
Do I need a permit to replace or add plumbing in my house?
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P2501.1
Plumbing Materials Must Be Approved for Their Use
P2501.1
Can I use any pipe or fitting that fits my plumbing project?
Can I use any pipe or fitting that fits my plumbing project?
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P2503.1
Final Plumbing Inspection Confirms Fixture Operation
P2503.1
What does the final plumbing inspection check?
What does the final plumbing inspection check?
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P2503.1
Plumbing Work Must Be Ready and Accessible for Inspection
P2503.1
Can an inspector approve plumbing if the walls are already closed?
Can an inspector approve plumbing if the walls are already closed?
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P2503.1
Rough Plumbing Must Be Inspected Before It Is Covered
P2503.1
When should I call for a rough-in plumbing inspection?
When should I call for a rough-in plumbing inspection?
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P2503.2
Drain, Waste, and Vent Piping Must Pass a Code Test
P2503.2
Does my DWV piping need a water or air test before inspection?
Does my DWV piping need a water or air test before inspection?
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P2503.3
Building Sewer Work Needs Inspection Before Backfill
P2503.3
Does a new sewer line have to be inspected before I backfill the trench?
Does a new sewer line have to be inspected before I backfill the trench?
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P2503.4
Water Supply Piping Must Be Pressure Tested Before Concealment
P2503.4
Does new water supply piping need a pressure test?
Does new water supply piping need a pressure test?
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P2503.6
Shower Pan Liners Need a Flood Test Before Tile
P2503.6
Does a shower pan liner need to be inspected before tile is installed?
Does a shower pan liner need to be inspected before tile is installed?
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