The Transportation Security Plan is required by the U.S. Department of Transportation for operations that ship or transport materials in quantities that require what?

• A. A placard
• B. A safety data sheet
• C. A spill plan
• D. A license renewal

Answer: (A)

When hazardous materials are shipped in quantities that require placards, a Transportation Security Plan is required. Placards are the warning signs placed on vehicles and loads to indicate the specific hazard class and the level of danger; they only appear when the shipment meets the regulatory thresholds. Because those shipments pose added security risks, the plan is put in place to protect the materials from theft, diversion, or tampering and to outline security procedures, access controls, and incident responses. Safety data sheets provide hazard information for workers, spill plans deal with containment and cleanup after a release, and license renewal is a separate administrative task—none of these establish the security framework for placarded shipments.