In an article in the Courier-Journal by Megan Banta (August 10, 2012), they describe a new law that has taken effect in Indiana. It is now a "class A infraction to transport food that is more than two degrees above the acceptable temperature, that shows outward signs of contamination of spoilage or that is loaded in a way that risks cross-contamination" (Banta, 2012).
Read full article about Indiana's efforts & enforcement to improve food safety on the roads HERE.
Banta, M. 2012. "Food Safety: Overheated transport trucks spark concerns about spoilage." Courier-Journal.com. Accessed Aug.13. 2012.