Z,
thats nothing. As a retailer, WalMart tractor trailers are rolling bombs. Think about all of the hairspray cans, next to BBQ lighter fluid, on top of 1lb propane cylinders, next to cases of matches ect ...ect in the same truck rolling down the highway everyday all day long. It isnt even only WalMart but every general carrier on the road with out placards because they are not carrying "enough" of any one thing to require a HazMat placard.
Placards are not required for a collection of materials like they carry, Only required for a certain amount of a single item. So long as they stay below the "set" limit of material they are free to load the truck and send it on its way.
For example:
For placarding you may need 20 cases of hairspray, or 20 cases of propane bottles, or 50 cases of lighter fluid.
so i could load that same truck with 19 cases of hairspray, 19 cases of propane bottles and 49 cases of lighter fluid and NOT need a placard.
That is scary !
I drove semi for 4 yrs while working my way through my paramedic degree prereqs