396Excerpts from 49 CFR §172.102. Verify against the current official rule text before relying on them.
Provision text
Large and robust articles may be transported with connected gas cylinders with the valves open regardless of §173.24, provided:
a. The gas cylinders contain nitrogen of UN 1066 or compressed gas of UN 1956 or compressed air of UN1002;
b. The gas cylinders are connected to the article through pressure regulators and fixed piping in such a way that the pressure of the gas (gauge pressure) in the article does not exceed 35 kPa (0.35 bar);
c. The gas cylinders are properly secured so that they cannot shift in relation to the article and are fitted with strong and pressure resistant hoses and pipes;
d. The gas cylinders, pressure regulators, piping, and other components are protected from damage and impacts during transport by wooden crates or other suitable means;
e. The shipping paper must include the following statement: “Transport in accordance with special provision 396”; and
f. Cargo transport units containing articles transported with cylinders with open valves containing a gas presenting a risk of asphyxiation are well ventilated.
a. The gas cylinders contain nitrogen of UN 1066 or compressed gas of UN 1956 or compressed air of UN1002;
b. The gas cylinders are connected to the article through pressure regulators and fixed piping in such a way that the pressure of the gas (gauge pressure) in the article does not exceed 35 kPa (0.35 bar);
c. The gas cylinders are properly secured so that they cannot shift in relation to the article and are fitted with strong and pressure resistant hoses and pipes;
d. The gas cylinders, pressure regulators, piping, and other components are protected from damage and impacts during transport by wooden crates or other suitable means;
e. The shipping paper must include the following statement: “Transport in accordance with special provision 396”; and
f. Cargo transport units containing articles transported with cylinders with open valves containing a gas presenting a risk of asphyxiation are well ventilated.