Robert Simpson wrote:
Tony's right. The car is either 1) empty, no hazmat residue or 2) loaded with a material not requiring a placard (non-hazmat). Placards, if present, can not be used to determine if a car is loaded or residue.Robert, of course, is quoting (correctly) post-1970 rules. In the period of this list, separate empty placards were used for many commodities.
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