Section 172.400 - General labeling requirements(a) Except as specified in § 172.400a , each person who offers for transportation or transports a hazardous material in any of the following packages or containment devices, shall label the package or containment device with labels specified for the material in the § 172.101 table and in this subpart: (2) A bulk packaging, other than a cargo tank, portable tank, or tank car, with a volumetric capacity of less than 18 m3 (640 cubic feet), unless placarded in accordance with subpart F of this part;(3) A portable tank of less than 3785 L (1000 gallons) capacity, unless placarded in accordance with subpart F of this part;(4) A DOT Specification 106 or 110 multi-unit tank car tank, unless placarded in accordance with subpart F of this part; and(5) An overpack, freight container or unit load device, of less than 18 m3 (640 cubic feet), which contains a package for which labels are required, unless placarded or marked in accordance with § 172.512 of this part.(b) Labeling is required for a hazardous material which meets one or more hazard class definitions, in accordance with column 6 of the § 172.101 table and the following table: Table 1 to Paragraph (b)
| Hazard class or division | Label name | Label design
or section
reference |
| 1.1 | EXPLOSIVES 1.1 | 172.411 |
| 1.2 | EXPLOSIVES 1.2 | 172.411 |
| 1.3 | EXPLOSIVES 1.3 | 172.411 |
| 1.4 | EXPLOSIVES 1.4 | 172.411 |
| 1.5 | EXPLOSIVES 1.5 | 172.411 |
| 1.6 | EXPLOSIVES 1.6 | 172.411 |
| 2.1 | FLAMMABLE GAS | 172.417 |
| 2.2 | NON-FLAMMABLE GAS | 172.415 |
| 2.3 | POISON GAS | 172.416 |
| 3 Flammable Liquid (Combustible liquid) | FLAMMABLE LIQUID (none) | 172.419 |
| 4.1 | FLAMMABLE SOLID | 172.420 |
| 4.2 | SPONTANEOUSLY COMBUSTIBLE | 172.422 |
| 4.3 | DANGEROUS WHEN WET | 172.423 |
| 5.1 | OXIDIZER | 172.426 |
| 5.2 | ORGANIC PEROXIDE | 172.427 |
| 6.1 (material poisonous by inhalation (see § 171.8 of this subchapter)) | POISON INHALATION HAZARD | 172.429 |
| 6.1 (other than a material poisonous by inhalation) | POISON | 172.430 |
| 6.1 (inhalation hazard, Zone A or B) | POISON INHALATION HAZARD | 172.429 |
| 6.1 (other than inhalation hazard, Zone A or B) | POISON | 172.430 |
| 6.2 | INFECTIOUS SUBSTANCE | 172.432 |
| 7 (see § 172.403 ) | RADIOACTIVE WHITE-I | 172.436 |
| 7 | RADIOACTIVE YELLOW-II | 172.438 |
| 7 | RADIOACTIVE YELLOW-III | 172.440 |
| 7 (fissile radioactive material; see § 172.402 ) | FISSILE | 172.441 |
| 7 (empty packages, see § 173.428 of this subchapter) | EMPTY | 172.450 |
| 8 | CORROSIVE | 172.442 |
| 9 | CLASS 9 | 172.446 |
Amdt. 172-123, 55 FR 52593, Dec. 21, 1990, as amended at 56 FR 66255, Dec. 20, 1991; Amdt. 172-151, 62 FR 1228, Jan. 8, 1997; 64 FR 10776, Mar. 5, 1999; 64 FR 51918, Sept. 27, 1999; 69 FR 3668, Jan. 26, 2004; 69 FR 64471, Nov. 4, 2004; 78 FR 60753, Oct. 2, 2013; 85 FR 83381, Dec. 21, 2020; 87 FR 79773, Dec. 27, 2022 85 FR 83381, 1/20/2021; 87 FR 79773, 1/26/2023