What does 49 CFR 172.313 (Poisonous hazardous materials) require?

Short answer

49 CFR 172.313 requires specific markings and labels for poisonous hazardous materials, including "Inhalation Hazard" and "POISON" markings, and identification numbers on transport vehicles or freight containers.

The rule says

1. "A material poisonous by inhalation (see 171.8 of this subchapter) shall be marked Inhalation Hazard in association with the required labels or placards, as appropriate, and shipping name when required." (49 CFR 172.313(a))

2. "Each non-bulk plastic outer packaging used as a single or composite packaging for materials meeting the definition of Division 6.1 (in 173.132 of this subchapter) shall be permanently marked, by embossment or other durable means, with the word POISON in letters at least 6.3 mm (0.25 inch) in height." (49 CFR 172.313(b))

3. "A transport vehicle or freight container containing a material poisonous by inhalation in non-bulk packages shall be marked, on each side and each end as specified in 172.332 or 172.336, with the identification number specified for the hazardous material in the 172.101 table, subject to the following provisions and limitations" (49 CFR 172.313(c))

In plain English

The regulation requires specific markings and labels to warn of the hazards of poisonous materials, including inhalation hazards. These markings must be clearly visible on packages, transport vehicles, and freight containers. The "Inhalation Hazard marking is required for materials that can be poisonous if inhaled, while the .POISON" marking is required for Division 6.1 materials. Identification numbers must also be displayed on transport vehicles and freight containers carrying these materials. These requirements help ensure the safe handling and transportation of hazardous materials.

What to do

• Ensure that all packages containing poisonous hazardous materials are properly marked with "Inhalation Hazard" or "POISON" labels, as required.
• Verify that transport vehicles and freight containers carrying these materials are marked with the correct identification numbers.
• Review the Hazardous Materials Table in 49 CFR 172.101 to determine the specific marking and labeling requirements for each material.
• Train personnel on the proper handling and transportation of hazardous materials, including the requirements for markings and labels.