Deadline to Submit Proposed Changes to 2024 National Standard Plumbing Code (NSPC) is March 1
In order to facilitate the development of an updated National Standard Plumbing Code — Illustrated™ (NSPC), the IAPMO NSPC Committee requests proposed changes to the 2021 NSPC. All proposals are due by March 1, 2022. Proposals accepted by the technical committee will appear in the 2024 NSPC.