Boat transporters Call Before You Haul boats across state lines to avoid delays at 1-844-311-4873.

Please submit .jpeg files by email to or fax to 515-237-3257.

On July 1, 2020, Iowa law eliminated over-dimensional permits for hay, straw, stover, or bagged livestock bedding. Legal dimensions for hauling these are 12 ft 5 inches wide, 14 ft 6 inches high and 80K with legal axle weights.

DOT COVID-19 information is available at

Welcome to Iowa's online permitting system (IAPS)

This site issues 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. An oversize permit shall not be valid during the nighttime hours of sunset to sunrise unless authorized for continuous movement.

Holiday Travel Restrictions

An oversize/overweight permit shall not be valid for the operation of a vehicle on the following 2022 holidays:

    Memorial Day - Noon Friday, May 27 to 30min before sunrise on Tuesday, May 31
    Independence Day - Noon Friday, July 1 to 30min before sunrise on Tuesday, July 5
    Labor Day - Noon Friday, September 2 to 30min before sunrise on Tuesday, September 6

Holiday Office Closings

The Iowa DOT permit office will be closed on the following dates. Permits may still be applied for and even system issued during these times; however, any office processing required will be delayed.

    New Year's Eve - December 31, 2021
    Martin Luther King, Jr. Day - January 17, 2022
    Memorial Day - May 30, 2022
    Independence Day - July 4, 2022
    Labor Day - September 5, 2022
    Veteran's Day - November 11, 2022
    Thanksgiving - November 23-25, 2022
    Christmas - December 23 and 26, 2022
    New Year's Day - January 2, 2023

For any questions, please see the FAQ page which also contains our contact information. Normal business hours are Monday from 12:30pm to 4:30pm and Tuesday - Friday from 8:30am to 4:30pm central standard time.

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System Configuration, Information, & Troubleshooting

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