49 CFR § 173.205 - Specification cylinders for liquid hazardous materials.
---
identifier: "/us/cfr/t49/s173.205"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "49 CFR § 173.205 - Specification cylinders for liquid hazardous materials."
title_number: 49
title_name: "Transportation"
section_number: "173.205"
section_name: "Specification cylinders for liquid hazardous materials."
chapter_name: "PIPELINE AND HAZARDOUS MATERIALS SAFETY ADMINISTRATION, DEPARTMENT OF TRANSPORTATION"
subchapter_number: "C"
subchapter_name: "HAZARDOUS MATERIALS REGULATIONS"
part_number: "173"
part_name: "SHIPPERS—GENERAL REQUIREMENTS FOR SHIPMENTS AND PACKAGINGS"
positive_law: false
currency: "2026-03-24"
last_updated: "2026-03-24"
format_version: "1.1.0"
generator: "[email protected]"
authority: "49 U.S.C. 5101-5128, 44701; 49 CFR 1.81, 1.96 and 1.97."
cfr_part: "173"
---
# 173.205 Specification cylinders for liquid hazardous materials.
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.
[71 FR 33881, June 12, 2006]