Ask X3What does 49 CFR 172.400a (Exceptions from labeling) require?
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As Ask X3, your fleet-compliance assistant, here is what 49 CFR 172.400a requires and provides:
Under 49 CFR 172.400a, labels are not required in specific situations, provided certain conditions are met. Specifically, you do not need to apply labels to:
* Certain Cylinders and Dewar Flasks: A Dewar flask (meeting § 173.320) or a cylinder holding a Division 2.1, 2.2, or 2.3 material, provided it is durably and legibly marked following CGA C-7, Appendix A. *(Note: Overpacks containing these still must be labeled).*
* Military Shipments: Packages or units of military explosives/ammunition shipped by or for the DOD when they are part of a freight containerload, carload, or truckload that is loaded and unloaded by the shipper or DOD, or specific unitized/palletized break-bulk shipments by cargo vessel where at least one required label is shown on each unitized/palletized load.
* DOD-Supervised Materials: A package containing hazardous materials (other than ammunition) if it is loaded and unloaded under DOD supervision and escorted by DOD personnel in a separate vehicle.
* Permanently Mounted Cylinders: A compressed gas cylinder that is permanently mounted in or on a transport vehicle.
* Placarded Units: A freight container, aircraft unit load device, or portable tank that is properly placarded or conforms to specific provisions in § 172.512.
* Overpacks and Unit Load Devices: An overpack or unit load device as long as the labels representing each hazardous material inside remain visible.
* Radioactive Materials: Packages of low specific activity radioactive material and surface contaminated objects transported under § 173.427(a)(6)(vi).
* Toy Caps: Packages containing toy plastic or paper caps for toy pistols (described as UN0349 or NA0337, 1.4S) offered in line with Special provision 382.
* Small and Limited Quantities: Certain labeling exceptions apply to small and limited quantities under applicable sections of part 173.
* Subsidiary Hazards: A Division 6.1 subsidiary hazard label is not required on a package with a Class 8 (corrosive) material if the toxicity is based solely on tissue destruction rather than systemic poisoning. Additionally, a Division 4.1 subsidiary hazard label is not required if the package already bears a Division 4.2 label.
* Inhalation Hazards: Packages containing materials poisonous by inhalation inside a closed transport vehicle or freight container may be excepted from POISON INHALATION HAZARD or POISON GAS labels/placards under the conditions of § 171.23(b)(10).