IPC · 2024 International Plumbing Code

§301.1 · Scope

Effective in IPC 2024.

Plain-English explainer

301.1 establishes the scope of the International Plumbing Code: it applies to plumbing work in a building, including the supply, drainage, venting, and storm systems that serve the building, and to the fixtures and equipment that connect to those systems. The drafter cites it on the second line of every draft to confirm the project actually belongs in the IPC.

Why inspectors flag this

A permit pulled outside the IPC scope (water service beyond the building, well piping, process piping) fails this rule before it fails anything else; the drafter lifts it so the citation list proves the document is grounded in the plumbing code.

As quoted in the code: The IPC applies to plumbing work in buildings, including the supply, drainage, venting, and storm systems that serve the building, and to the fixtures and equipment that connect to those systems.

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