uestion 21: Is a DVIR required by a motor carrier operating only one tractor trailer combination?

Section § 396.11: Driver vehicle inspection report(s).

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Guidance Q&A

Question 21: Is a DVIR required by a motor carrier operating only one tractor trailer combination?

Guidance: No. One tractor semitrailer/full trailer combination is considered one motor vehicle. However, a carrier operating a single truck tractor and multiple semitrailers, which are not capable of being operated as one combination unit, would be required to prepare DVIRs.