Ask X3What does 49 CFR 387.305 (Combination vehicles) require?
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According to 49 CFR 387.305, certain vehicle combinations are regarded as a single motor vehicle for the purposes of this part. Specifically, this includes:
1. A tractor and trailer or semitrailer, provided the tractor is engaged solely in drawing that trailer or semitrailer.
2. A truck and trailer, provided both vehicles together bear a single load.