StacksVerified U.S. regulatory reference

49 CFR §230.62

Verified against eCFR.gov as of June 20, 2026View official text on eCFR.gov ↗
Dry pipes subject to pressure shall be examined at each annual inspection to measure wall thickness. Dry pipes with wall thickness reduced below that required to render the pipe suitable for the service intended at the MAWP must be replaced or repaired.