*** Due to staffing limitations your transactions may take longer than normal.***
The Governor's Harvest Proclamation for travel on Iowa highways is in effect. The proclamation allows vehicles transporting corn, soybeans, hay, straw, silage and stover to be overweight (not exceeding 90k gross weight and 20k per axle) without a permit until November 30, 2021.
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.
2021 Holiday Travel Restrictions
An oversize/overweight permit shall not be valid for the operation of a vehicle on the following 2021 holidays:
- Noon Friday, May 28 to 30min before sunrise on Tuesday, June 1Independence Day
- Noon Friday, July 2 to 30min before sunrise on Tuesday, July 6Labor Day
- Noon Friday, September 3 to 30min before sunrise on Tuesday, September 7
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 Day - January 1, 2021
Martin Luther King, Jr. Day - January 18, 2021
Presidents' Day - February 15, 2021
Memorial Day - May 31, 2021
Independence Day - July 5, 2021
Labor Day - September 6, 2021
Veteran's Day - November 11, 2021
Thanksgiving - November 24-26, 2021
Christmas - December 23-24, 2021
New Year's Day - January 1, 2022
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.