Which regulation governs when placards must be displayed on vehicles carrying hazmat?

Which regulation governs when placards must be displayed on vehicles carrying hazmat?

• A. 49 CFR
• B. 29 CFR
• C. 40 CFR
• D. 14 CFR

Answer: (A)

Hazardous materials placarding on vehicles is governed by the Hazardous Materials Regulations under Title 49 of the Code of Federal Regulations. The part that covers placards explains when a placard is required, which placard to use based on the hazard class, where to display it on the vehicle, and the conditions under which placards must be shown. This framework is specifically about transporting hazmat by road and is the standard reference for these requirements. Other regulations listed address different areas: workplace safety rules, environmental protection, or aviation regulations. So for motor-vehicle hazmat placarding, the governing rule is the 49 CFR HazMat Regulations.

Hazardous materials placarding on vehicles is governed by the Hazardous Materials Regulations under Title 49 of the Code of Federal Regulations. The part that covers placards explains when a placard is required, which placard to use based on the hazard class, where to display it on the vehicle, and the conditions under which placards must be shown. This framework is specifically about transporting hazmat by road and is the standard reference for these requirements.

Other regulations listed address different areas: workplace safety rules, environmental protection, or aviation regulations. So for motor-vehicle hazmat placarding, the governing rule is the 49 CFR HazMat Regulations.