Bill > SF643

Introduced Session

Under current law, any kind of vehicle, implement, or conveyance incapable of attaining and maintaining a speed of 40 miles per hour (MPH) is prohibited from using the interstate road system. This bill provides a conditional exception to that prohibition. If an implement of husbandry may be operated on the segment of the highway known as U.S. highway 65, and state highway 5, including where the highway designations overlap (segment), between the highway’s intersection with U.S. highway 6 and the highway’s intersection with U.S. highway 69, prior to the date the segment becomes part of the interstate road system, then the implement of husbandry may continue to be operated on that segment until an alternative route for implements of husbandry is made available. The department of transportation (DOT) may authorize an implement of husbandry to be operated on the segment farther west beyond the intersection with U.S. highway 69. Under current law, an “implement of husbandry” means a vehicle or special mobile equipment manufactured, designed, or reconstructed for agricultural purposes and, except for incidental uses, is exclusively used in the conduct of agricultural operations. To be considered an implement of husbandry, a self-propelled qualifying vehicle must be operated at speeds of 35 MPH or less. The bill prohibits the DOT and the state transportation commission from pursuing an interstate road designation for the segment extending between the segment’s intersections with interstate 35 and interstate 80 unless the U.S. government provides an exemption from federal regulations regarding vehicle weight and size on that segment, as described in the bill. The bill requires the DOT to collaborate with the Des Moines area metropolitan planning organization as the organization conducts an alternative highway study to develop and implement an accessible alternative highway route suitable for implements of husbandry. The bill applies to the segment on the effective date of the bill, and will continue to apply to the segment regardless of whether the highway’s designation is subsequently changed.

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No sponsors listed

Other Sponsors (1)

Withdrawn. S.J. 962. (on 05/12/2025)

Official Document