motor carriers

Oversize/Overweight Trip Permits

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Harvest Proclamation

The harvest proclamation allows vehicles transporting corn, soybeans, hay, straw, silage and stover to be overweight (not exceeding 90,000 pounds gross weight) without a permit through Oct. 17, 2021.

This proclamation applies to loads transported on all highways within Iowa (excluding the interstate system) and those which do not exceed a maximum of 90,000 pounds gross weight, do not exceed the maximum axle weight limit determined under the non-primary highway maximum gross weight table in Iowa Code ยง 321.463 (6) (b), by more than 12.5 percent, do not exceed the legal maximum axle weight limit of 20,000 pounds, and comply with posted limits on roads and bridges.

Order permits online


Get permits for oversize and overweight vehicles along state owned routes only. This includes Interstate, US, & IA routes. Permits for local or city routes should be obtained from those respective agencies.