Code of Federal Regulations > Title 49 > Chapter I > Part 173 > Subpart G - Subpart G—Gases; Preparation and Packaging

U.S. Code of Federal Regulations

Regulations most recently checked for updates: Nov 22, 2025

§ 173.300 - [Reserved]

§ 173.301 - General requirements for shipment of compressed gases and other hazardous materials in cylinders, UN pressure receptacles, and spherical pressure vessels.

§ 173.301a - Additional general requirements for shipment of specification cylinders.

§ 173.301b - Additional general requirements for shipment of UN pressure receptacles.

§ 173.302a - Additional requirements for shipment of non-liquefied (permanent) compressed gases in specification cylinders.

§ 173.302b - Additional requirements for shipment of non-liquefied (permanent) compressed gases in UN pressure receptacles.

§ 173.302c - Additional requirements for the shipment of adsorbed gases in UN pressure receptacles.

§ 173.303 - Charging of cylinders with compressed gas in solution (acetylene).

§ 173.304 - Filling of cylinders with liquefied compressed gases.

§ 173.304a - Additional requirements for shipment of liquefied compressed gases in specification cylinders.

§ 173.304b - Additional requirements for shipment of liquefied compressed gases in UN pressure receptacles.

§ 173.305 - Charging of cylinders with a mixture of compressed gas and other material.

§ 173.306 - Limited quantities of compressed gases.

§ 173.307 - Exceptions for compressed gases.

§ 173.308 - Lighters.

§ 173.309 - Fire extinguishers.

§ 173.310 - Exceptions for radiation detectors.

§ 173.311 - Metal Hydride Storage Systems.

§ 173.312 - Requirements for shipment of MEGCs.

§ 173.313 - UN Portable Tank Table for Liquefied Compressed Gases and Chemical Under Pressure.

§ 173.314 - Compressed gases in tank cars and multi-unit tank cars.

§ 173.315 - Compressed gases in cargo tanks and portable tanks.

§ 173.316 - Cryogenic liquids in cylinders.

§ 173.318 - Cryogenic liquids in cargo tanks.

§ 173.319 - Cryogenic liquids in tank cars.

§ 173.320 - Cryogenic liquids; exceptions.

§ 173.321 - Ethylamine.

§ 173.322 - Ethyl chloride.

§ 173.323 - Ethylene oxide.

§ 173.334 - Organic phosphates mixed with compressed gas.

§ 173.335 - Chemical under pressure n.o.s.

§ 173.336 - Nitrogen dioxide, liquefied, or dinitrogen tetroxide, liquefied.

§ 173.337 - Nitric oxide.

§ 173.338 - Tungsten hexafluoride.

§ 173.340 - Tear gas devices.