Wisconsin Department of Transportation

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Wisconsin Act 377 definitions

View Wisconsin Act 377

Implement of Husbandry (IoH)

  1. A self-propelled or towed vehicle that is manufactured, designed or reconstructed to be used and that is exclusively used in the conduct of agricultural operations. An “implement of husbandry" may include any of the following:
    1. A farm tractor. (Referred to as Category A)
    2. A self-propelled combine; a self-propelled forage harvester; self-propelled fertilizer or pesticide application equipment but not including manure application equipment; towed tillage, planting, and cultivation equipment and its towing power unit; or another self-propelled vehicle that directly engages in harvesting farm products, directly applies fertilizer, spray, or seeds but not manure, or distributes feed to livestock. (Referred to as Category B)
    3. A farm wagon, farm trailer, manure trailer, or trailer adapted to be towed by, or to tow or pull, another implement of husbandry. (Referred to as Category C)
  2. A combination of vehicles in which each vehicle in the vehicle combination is an implement of husbandry as described in subd. 1. or in which an implement of husbandry described in subd. 1. c. is towed by a farm truck, farm truck tractor, or motor truck.
    1. “Implement of husbandry" does not include any of the following:
      1. An agricultural commercial motor vehicle.
      2. A vehicle that, notwithstanding s. 340.01 (8), is a commercial motor vehicle under 49 CFR 390.5

Agricultural Commercial Motor Vehicle (Ag CMV)

“Agricultural commercial motor vehicle" (Ag CMV) means a commercial motor vehicle to which all of the following apply:

  1. The vehicle is substantially designed or equipped, or materially altered from its original construction, for the purpose of agricultural use.
  2. The vehicle was designed and manufactured primarily for highway use.
  3. Unless the vehicle was manufactured prior to 1970, the vehicle was manufactured to meet federal motor vehicle safety standard certification label requirements as specified in 49 CFR 567.
  4. The vehicle is used exclusively in the conduct of agricultural operations.
  5. The vehicle is directly engaged in harvesting farm products, directly applies fertilizer, spray, or seeds to a farm field, or distributes feed to livestock.

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