To require the Secretary of Transportation to issue regulations relating to the transportation of hazardous materials to require placards to be placed on all refrigerated shipping containers, and for other purposes.

If passed, refrigerated shipping companies will incur upfront costs to retrofit containers with placards and ongoing costs for replacement and maintenance. Smaller regional carriers may face competitive disadvantage or operational burden. Emergency responders may respond more effectively to incidents involving refrigerated shipments. The impact depends on whether current regulations already require such placarding under existing hazmat rules—if they do, the bill creates redundancy; if they don't, it closes a genuine safety gap. Analogous state-level hazmat labeling mandates have typically driven industry consolidation toward larger carriers better able to absorb compliance costs.