政策法规现行有效美国危险品合规

§ 172.400a Exceptions from labeling.

效力	法规类型	发布日期	生效日期	发文机构
现行有效	部门规章	2026-08-07	2026-09-08	Code of Federal Regulations (CFR) - Transportation (Title 49)

发布08-07

生效09-08

摘要总结AI 辅助解读

本条款规定了美国危险品运输中免除标签粘贴的特定情形。主要豁免对象包括：符合CGA标准的杜瓦瓶或气瓶、由国防部（DOD）监管的军用爆炸物及受护送的危险品、永久安装在车辆上的压缩气瓶、已正确张贴标牌（Placard）的大型容器、以及内部标签可见的集装器。此外，对于仅因腐蚀性导致毒性的8类物质可免贴6.1副危险标签，封闭运输中的吸入性有毒气体在满足特定条件时可免贴相应标签。注意：即使内包装豁免，外包装（Overpacks）通常仍需按规定加贴标签。

(a) Notwithstanding the provisions of § 172.400, a label is not required on—

- (1) A Dewar flask meeting the requirements in § 173.320 of this subchapter or a cylinder containing a Division 2.1, 2.2, or 2.3 material that is durably and legibly marked in accordance with CGA C-7, Appendix A (IBR; see § 171.7 of this subchapter). Notwithstanding this exception, overpacks must be labeled (see § 173.25 of this subchapter).

- (2) A package or unit of military explosives (including ammunition) shipped by or on behalf of the DOD when in—

(i) Freight containerload, carload or truckload shipments, if loaded and unloaded by the shipper or DOD; or

- (ii) Unitized or palletized break-bulk shipments by cargo vessel under charter to DOD if at least one required label is displayed on each unitized or palletized load.

- (3) A package containing a hazardous material other than ammunition that is—

(i) Loaded and unloaded under the supervision of DOD personnel, and

- (ii) Escorted by DOD personnel in a separate vehicle.

- (4) A compressed gas cylinder permanently mounted in or on a transport vehicle.

- (5) A freight container, aircraft unit load device or portable tank, which—

(i) Is placarded in accordance with subpart F of this part, or

- (ii) Conforms to paragraph (a)(3) or (b)(3) of § 172.512.

- (6) An overpack or unit load device in or on which labels representative of each hazardous material in the overpack or unit load device are visible.

- (7) A package of low specific activity radioactive material and surface contaminated objects, when transported under § 173.427(a)(6)(vi) of this subchapter.

- (8) Packages containing toy plastic or paper caps for toy pistols described as “UN0349, Articles, explosive, n.o.s. (Toy caps), 1.4S” or “NA0337, Toy caps, 1.4S” when offered in conformance with the conditions of § 172.102(c)(1), Special provision 382.

(b) Certain exceptions to labeling requirements are provided for small quantities and limited quantities in applicable sections in part 173 of this subchapter.
(c) Notwithstanding the provisions of § 172.402(a), a Division 6.1 subsidiary hazard label is not required on a package containing a Class 8 (corrosive) material which has a subsidiary hazard of Division 6.1 (poisonous) if the toxicity of the material is based solely on the corrosive destruction of tissue rather than systemic poisoning. In addition, a Division 4.1 subsidiary hazard label is not required on a package bearing a Division 4.2 label.
(d) A package containing a material poisonous by inhalation (see § 171.8 of this subchapter) in a closed transport vehicle or freight container may be excepted from the POISON INHALATION HAZARD or POISON GAS label or placard, under the conditions set forth in § 171.23(b)(10) of this subchapter.

[Amdt. 172-123, 55 FR 52594, Dec. 21, 1990]

Editorial Note: For Federal Register citations affecting § 172.400a, see the List of CFR Sections Affected, which appears in the Finding Aids section of the printed volume and at www.govinfo.gov.