What is required for a hazmat CDL endorsement under 49 CFR 383.121?

Short answer

To obtain a hazardous materials endorsement, an applicant must have knowledge of hazardous materials regulations, handling, emergency equipment operation, and emergency response procedures. The applicant must also pass a knowledge test and undergo a security threat assessment by the Transportation Security Administration.

The rule says

"In order to obtain a hazardous materials endorsement, each applicant must have such knowledge as is required of a driver of a hazardous materials laden vehicle, from information contained in 49 CFR parts 171, 172, 173, 177, 178, and 397, on the following: (a) Hazardous materials regulations including: (1) Hazardous materials table; (2) Shipping paper requirements; (3) Marking; (4) Labeling; (5) Placarding requirements; (6) Hazardous materials packaging; (7) Hazardous materials definitions and preparation; (8) Other regulated material (e.g., ORM-D); (9) Reporting hazardous materials accidents; and (10) Tunnels and railroad crossings." (49 CFR 383.121)

In plain English

The hazmat endorsement requires a deep understanding of the regulations and safe handling practices for hazardous materials. This includes knowledge of the hazardous materials table, shipping paper requirements, marking, labeling, and placarding, as well as emergency response procedures. The Transportation Security Administration also conducts a security threat assessment to ensure the applicant does not pose a security risk. In practice, this means that drivers must be able to recognize and identify hazardous materials, understand the risks associated with them, and know how to respond in case of an emergency.

What to do

• Ensure that all drivers who transport hazardous materials have a valid CDL with a hazmat endorsement.
• Verify that drivers have completed the required knowledge test and security threat assessment.
• Maintain accurate records of driver endorsements and security threat assessments.
• Provide ongoing training to drivers on hazardous materials regulations and safe handling practices.