| GENERAL GUIDELINES ON USE OF WARNING LABELS AND PLACARDS |
| LABELS |
| SEE 49 CFR, PART 172, SUBPART E FOR COMPLETE LABELING REGULATIONS. |
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The Hazardous Materials Table [§172.101, Col. 6] identifies the proper label(s) for the hazardous material listed. |
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Any person who offers a hazardous material for transportation MUST label the package, if required [§172.400(a)]. |
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Labels may be affixed to packages when not required by regulations, provided each label represents a hazard of the material contained in the package [§172.401]. |
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The appropriate hazard class or division number must be displayed in the lower corner of a primary and subsidiary hazard label [§172.402(b)]. |
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For classes 1,2,3,4,5,6, and 8, text indicating a hazard (e.g., "CORROSIVE") IS NOT required on a label. The label must otherwise conform to Subpart E of Part 172 [§172.405]. |
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Labels must be printed on or affixed to the surface of thepackage near the proper shipping name marking [§172.406(a)]. |
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When primary and subsidiary labels are required, they must be displayed next to each other [§172.406(c)]. |
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For a package contianing a Division 6.1, Packing Group III material, the POISON label specified in §172.430 may be modified to dispaly the text PG III instead of POISON or TOXIC. See also [§172.313(d)]. |
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The class number must be displayed on a subsidiary label. For Transition 2005, see [§172.402(b)]. |
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| PLACARDS |
| SEE 49 CFR, PART 172, SUBPART F FOR COMPLETE PLACARDING REGULATIONS. |
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Each person who offers for transportation or transports any hazardous material subject to the Hazardous Materials Regulations must comply with all applicable reuirements of Subpart F [§172.500]. |
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Placards may be displayed for a hazardous material, even when not required, if the placarding otherwise conforms to the requirements of Subpart F of Part 172 [7sect;172.502(c)]. |
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For other than Class 7 or the DANGEROUS placard, text indicating a hazard (e.g., "FLAMMABLE") is not required. Text may be omitted from the OXYGEN placard only if the specific ID number is displayed on the placard [§172.519(b)(3)]. |
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For a placard corresponding to the primary or subsidiary hazard class of a meterial, the hazard class or division number must be displayed in the lower corner of the placard [§172.519(b)(4)]. |
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A transport vehicle, freight container, or rail car containing any quantity of material listed in Table 1 must be placarded [§172.504]. |
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When the gross weight of all hazardous materials in non-bulk packages covered in Table 2 is less than 454 kg (1,001 lbs), no placard is required on a transport vehicle or freight container [§172.504(c)]. |
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Note: See [§172.504(f)(10)] for placarding Division 6.1, PG-III materials. |
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Placarded loads require registration with USDOT. See [§107.601] for registration regulations. |
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| INHALATION HAZARD MATERIALS |
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| Materials which meet the inhalation toxicity criteria have additional "communication standards" prescribed by the HMR. The words "Poison-Inhalation Hazard" must be entered on the shipping papers, as required [§172.203(m)(2)]. Packagings must be marked "Inhalation Hazard" or, alternatively, when the words "Inhalation hazard" appear on the label or placard, the "Inhalation Hazard" marking is not required on the package. Transport vehicles, freight containers, portable tanks, and unit load devices that contain a poisonous material subject to the "Poison-Inhalation Hazard" shipping description, must be placarded with a POISON INHALATION HAZARD or POISON GAS placard, as appropriate. This shall be in addition to any other placard required for that material [§172,504]. |
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| PLACARDING TABLES |
| [§172.504(e)] |
| TABLE 1 (PLACARD ANY QUANTITY) |
| Hazard class or division |
Placard name |
| 1.1 |
EXPLOSIVES 1.1 |
| 1.2 |
EXPLOSIVES 1.2 |
| 1.3 |
EXPLOSIVES 1.3 |
| 2.3 |
POISON GAS |
| 4.3 |
DANGEROUS WHEN WET |
| 5.2 (Organic peroxide, Type B, liquid or solid, temperature controlled) |
ORGANIC PEROXIDE |
| 6.1 (Inhalation Hazard, Zone A or B) |
POISON INHALATION HAZARD |
| 7 (Radioactive Yellow III label only) |
RADIOACTIVE |
| TABLE 2 (PLACARD 1,001 LBS OR MORE) |
| Hazard class or division |
Placard name |
| 1.4 |
EXPLOSIVES 1.4 |
| 1.5 |
EXPLOSIVES 1.5 |
| 1.6 |
EXPLOSIVES 1.6 |
| 2.1 |
FLAMMABLE GAS |
| 2.2 |
NON-FLAMMABLE GAS |
| 3 |
FLAMMABLE |
| Combustible Liquid |
COMBUSTIBLE |
| 4.1 |
FLAMMABLE LIQUID |
| 4.2 |
SPONTANEOUSLY COMBUSTIBLE |
| 5.1 |
OXIDIZER |
| 5.2 (Other than organic peroxide, Type B, liquid or solid, temperature controlled) |
ORGANIC PEROXIDE |
| 6.1 (Other than inhalation hazard, Zone A or B) |
POISON |
| 6.2 |
(None) |
| 8 |
CORROSIVE |
| 9 |
CLASS 9 [§172.504(f)(9)] |
| ORM-D |
(None) |
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| For complete details, refer to one or more of the following: |
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Code of Federal Regulations, Title 49, Transportation, Parts 100-185. [All Modes] |
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International Civil Aviation Organization (ICAO) Technical Instructions for Safe Transport of Dangerous Goods by Air. [Air] |
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International Maritime Organization (IMO) Dangerous Goods Code. [Water] |
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Transportation of Dangerous Goods Regulations of Transport Canada. [All Modes] |
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U.S. Department of Transportation
Research and Special Programs Administration |
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