{"operation":"document","citation":"49 CFR 178.337-14","title":"-14 Gauging devices.","source_type":"regulation","agency":"Pipeline and Hazardous Materials Safety Administration","status":"current","official":true,"published_on":null,"effective_on":"2026-08-18","summary":"(a) Liquid level gauging devices. See § 173.315(h) of this subchapter.\n\n(b) Pressure gauges. (1) See § 173.315(h) of this subchapter.\n\n(2) Each cargo tank used in carbon dioxide, refrigerated liquid or nitrous oxide, refrigerated liquid service must be provided with a suitable pressure gauge. A shut","machine_formats":{"json":"https://regulus.evalyn.ai/document/49-cfr-178-337-14.json","markdown":"https://regulus.evalyn.ai/document/49-cfr-178-337-14.md"},"app_url":"https://regulus.evalyn.ai/document/49-cfr-178-337-14","source_url":"https://www.ecfr.gov/on/2026-08-18/title-49/section-178.337-14","body":"(a) Liquid level gauging devices. See § 173.315(h) of this subchapter.\n\n(b) Pressure gauges. (1) See § 173.315(h) of this subchapter.\n\n(2) Each cargo tank used in carbon dioxide, refrigerated liquid or nitrous oxide, refrigerated liquid service must be provided with a suitable pressure gauge. A shut-off valve must be installed between the pressure gauge and the cargo tank.\n\n(c) Orifices. See § 173.315(h) (3) and (4) of this subchapter.\n\n[Amdt. 178-29, 38 FR 27599, Oct. 5, 1973, as amended by Amdt. 178-89, 54 FR 25018, June 12, 1989; Amdt. 178-118, 61 FR 51340, Oct. 1, 1996]","truncated":false,"body_characters":580}