StacksVerified U.S. regulatory reference

49 CFR §192.371

Verified against eCFR.gov as of June 20, 2026View official text on eCFR.gov
Each steel service line to be operated at less than 100 p.s.i. (689 kPa) gage must be constructed of pipe designed for a minimum of 100 p.s.i. (689 kPa) gage.