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Who must comply?
  • Longer combination vehicle (LCV) driver-training rules apply to both instructors and drivers.
  • Vehicles affected by driver-training rules include Doubles and Triples.

LCV driver-training program requirements apply to both those who want to operate an LCV and those who provide instruction on LCV operation.

Key definitions:

  • Longer combination vehicle (LCV): Any combination of a truck-tractor and two or more trailers or semi-trailers, which operate on the National System of Interstate and Defense Highways with a gross vehicle weight greater than 80,000 pounds.
  • Longer combination vehicle (LCV) Double: An LCV consisting of a truck-tractor in combination with two trailers and/or semitrailers.
  • Longer combination vehicle (LCV) Triple: An LCV consisting of a truck-tractor in combination with three trailers and/or semitrailers.