U.S. Code of Federal Regulations
Regulations most recently checked for updates: May 28, 2020
(a) Liquid level gauging devices. See § 173.315(h) of this subchapter.
(b) Pressure gauges. (1) See § 173.315(h) of this subchapter.
(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.
(c) Orifices. See § 173.315(h) (3) and (4) of this subchapter.