Correct. However, it is illegal to mold tires with a DOT insert if they are no longer DOT-approved. One cannot assume that since they "used to be" DOT-approved that they automatically still are...and unless that DOT-cert carries for life, I can't imagine Hoosier spending the time and money to continue certification on a tire used for dirt track roundy-round...
Edit: here ya go. Hoosier "Oval Track D.O.T. Dirt" tires.
Edit, Part Deux: BTW, they're bias-ply tires. If you're never raced on bias you're in for a surprise...
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