motor carriers

Oversize/overweight permits - forms and applications


Permit forms

*Unless otherwise specified, permits issued by the Iowa DOT are NOT valid for travel on city and county roads.


General provisions

  • All vehicles operating under permit must carry a copy of the permit in the vehicle and make the permit available upon request of any authorized official.
  • A copy of the Iowa General Provisions for Oversize Load Permit must also be carried with the permit. All provisions noted on the permit and general provisions must be followed.

Single trip permit

  • Valid for five days, valid for one trip only (one way)

Round trip permit

  • Valid for five days, valid for a complete round trip along the same route

Single trip with weight increase permit

  • Valid for five days, valid for one trip only
  • Includes a temporary weight increase for one trip
  • Valid for house moves only

Temporary weight increase permit

  • Valid for five days, valid for one trip only
  • Weight increase only– not valid for travel on state roads; used in conjunction with city/county permits only
  • Valid for house moves only

Annual oversize permit

  • Valid for 12 months, unlimited trips
  • 80,000 pounds gross maximum, 20,000 pounds per axle maximum
  • Valid on all state and interstate highways

Annual oversize/overweight permit

  • Valid for 12 months, unlimited trips
  • 156,000 pounds gross maximum, 20,000 pounds per axle maximum
  • Not valid for interstate travel (state roads only)

Annual oversize permit for hay, straw, stover ONLY

  • Valid for 12 months, unlimited trips
  • 80,000 pounds gross maximum, 20,000 pounds per axle maximum
  • Valid on all state and interstate highways
  • For the movement of hay, straw, stover, and bagged livestock bedding only.

Annual route approval permit

  • Valid for five days, valid for one trip only
  • Used if you need Iowa DOT route approval for travel under an annual permit; refer to your annual permit for the minimum dimensions for route approval requirements

Bridge exempt permit

  • Valid for 12 months, unlimited trips
  • Must be 41 feet or less in length and exceed maximum gross weight table for noninterstate highways
  • May not exceed 80,000 pounds gross, 20,000 pounds single axle

Compacted rubbish permit

  • Valid for 12 months, unlimited trips
  • Each county of operation requires a separate rubbish permit
  • Separate city and/or county permits may be required (contact city/county engineer)
  • Allows for compacted rubbish vehicles to operate up to 36,000 pounds on the rear tandem axle for non-interstate roads; interstate limits are 20,000 pounds single axle and 34,000 pounds rear tandem-axle.

Raw milk transporter permit

  • Valid for 12 months, unlimited trips
  • Not valid for interstate travel
  • 20,000 pounds per axle maximum, 80,000 pounds total gross weight

Iowa registration trip permit

  • Valid for 72 hours
  • May not be used to satisfy International Registration Plan requirements for oversize/overweight loads

Iowa fuel trip permit

  • Valid for one trip in a 72 hour period

Commercial repair permit

  • Valid for 30 days
  • Valid only for trip to and from facility for maintenance and/or repair; cannot carry a load

Unladen weight permit

  • Valid for 15 days
  • Valid only for the empty weight of the vehicle

Multitrip permit

  • Valid for 60 days
  • Valid for unlimited round trips between the same origin and destination; only one route is allowed for each multitrip permit
  • 156,000 pounds gross maximum

All systems permit

  • Valid for 12 months
  • Allows for unlimited trips on all state and some city/county roads; refer to the All Systems Permit map for a list of participating counties and the roads allowed for travel
  • 80,000 pounds gross maximum, 20,000 pounds maximum per axle

Self-Propelled implement of husbandry with flotation tires

  • Valid for 1 year (July 1 to June 30)