StacksVerified U.S. regulatory reference

49 CFR §173.205

Verified against eCFR.gov as of June 20, 2026View official text on eCFR.gov ↗
When § 172.101 of this subchapter specifies that a hazardous material must be packaged under this section, the use of any specification or UN cylinder, except those specified for acetylene, is authorized. Cylinders used for toxic materials in Division 6.1 or 2.3 must conform to the requirements of § 173.40.