There are two main reasons why placarding a trailer and securing a hazmat endorsed driver will be necessary for your load.
Firstly, placarding your trucker’s vehicle is always required for freight that falls within a class listed in table one of the DOT’s placarding tables. This is true no matter how much (weight) needs to be moved.
For the commodities classified in table two of the DOT’s placarding tables, a different rule applies. When moving these types of freight, placarding only becomes necessary once their gross weight exceeds 1,000 total pounds.
Watch this video for some more information on hazmat placarding.
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