{"operation":"document","citation":"49 CFR 192.373","title":"Service lines: Cast iron and ductile iron.","source_type":"regulation","agency":"Pipeline and Hazardous Materials Safety Administration","status":"current","official":true,"published_on":null,"effective_on":"2026-08-18","summary":"(a) Cast or ductile iron pipe less than 6 inches (152 millimeters) in diameter may not be installed for service lines.\n\n(b) If cast iron pipe or ductile iron pipe is installed for use as a service line, the part of the service line which extends through the building wall must be of steel pipe.\n\n(c) ","machine_formats":{"json":"https://regulus.evalyn.ai/document/49-cfr-192-373.json","markdown":"https://regulus.evalyn.ai/document/49-cfr-192-373.md"},"app_url":"https://regulus.evalyn.ai/document/49-cfr-192-373","source_url":"https://www.ecfr.gov/on/2026-08-18/title-49/section-192.373","body":"(a) Cast or ductile iron pipe less than 6 inches (152 millimeters) in diameter may not be installed for service lines.\n\n(b) If cast iron pipe or ductile iron pipe is installed for use as a service line, the part of the service line which extends through the building wall must be of steel pipe.\n\n(c) A cast iron or ductile iron service line may not be installed in unstable soil or under a building.\n\n[35 FR 13257, Aug. 19, 1970, as amended by Amdt. 192-85, 63 FR 37503, July 13, 1998]","truncated":false,"body_characters":485}