Iowa State Shipping Regulations 2021

2021 Iowa state shipping regulations, limitations, rules and laws in the state of Iowa.



Iowa State Trucking Permit Regulations – oversize shipping and transport.

Legal Loads.

Length: 53’ trailer
Weight:  GVW = 80,000 lbs. Steer 20,000 lbs.
Width: 8’ 6”
Height:  13’ 6”

Routine oversize shipping, trucking and transport permits.

Length:  120’
Weight:  5 axles 92,000 lbs., 6 axles., 7 axles 132,000 lbs.,
Width:  18’
Height:  16’

How to apply for trucking permits.

Iowa DOT
Phone: 515-237-3264
Fax: 515-237-3257

Permits are valid for 5 days.  Single trip oversize trucking permit costs $10. Iowa State Trucking information site.

Pilot Car – Escort Car Requirements.

Length: 80’ to 100’ must have revolving lights.  Over 120’ requires 1 rear pilot/escort vehicle. 10’ overhang requires flashing lights.
Weight: Over 80,000 lbs. GVW requires amber lights.
Width: On Primary Road  Over 12’     1 front pilot car escort vehicle is required. On 2 lane over 14’ one rear pilot car escort vehicle is required. On 4 lane over 14’6” one rear pilot car escort vehicle is required.  On Interstate over 16’6” one pilot car escort vehicle or lighting is required.
Height:  Over 14’4” requires 1 front pilot car escort vehicle with height pole.

Travel Restrictions.

Travel is permitted from ½ hour before sunrise to ½ hour after sunset 7 days per week (see holiday and event traffic below). Trucks can travel 24/7 if the shipment is less than 11’ wide, 100’ long and 14’4” wide.

Holidays and event traffic.

Iowa code specifically states the designated restricted movement holidays are Memorial Day, Independence Day, and Labor Day. No movement will be allowed on these holidays or after 12 noon on days preceding these holidays and holiday weekends that include holidays falling on Monday, except as provided for in Iowa Code 321.457.

Note: If you are not in excess of the following weights/dimensions continuous travel may be permitted. 

Width: 11′.
Height: 14′ 6′
Length: 100′
Weight: Under legal limits.

Always refer to your permit first before movement. If you are not specifically clear on the complete instructions contact the Iowa DOT by phone: 515-237-3264.

The information contained in these pages is research information primarily for use by oversize and overweight trucking company drivers, dispatchers and pilot car companies. While every effort is put into maintaining the accuracy of this information you must absolutely verify this information with the Iowa State DOT Permits office before commencing movement.


Iowa frost law restrictions 2021.

2021 Iowa frost laws, seasonal load weight and restrictions.


In previous years the general rule seasonal restrictions typically begin around March 15th each year in Iowa. By no means consider this legal advice. Be sure to consult with the Iowa DOT before attempting to travel.


Current Iowa route restrictions by Iowa counties map.

Iowa DOT office: 515-237-3264

For more information about Iowa regulations and restrictions try our “Trucking regulations” link below.

See also:

Tire chain laws.
Tire chain laws by location.
Trucking regulations.
Federal bridge formula.
Exemptions from seasonal restrictions.


Iowa oversize trucking permits

Iowa oversize trucking permits

Iowa oversize trucking permits and over-weight are easy!

oversize trucking permits as well as over-weight

Save money DIY trucking permits. Oversize and over-weight.

Filing for oversize and over-weight trucking permits in Iowa are super easy and save your trucking company money.

Nothing like finding a way to cut down on operating costs these days. You will find that dealing directly with the Iowa state DOT is easier than ever these days. Something that trucking permit companies aren’t real eager to let you know. With technology the next thing in line is automation in order to cut labor costs. Well the states are finally catching up and American and Canadian trucking companies need to be hip to this if they intend on maximizing profits in lean times. Heavy haul and oversize trucking companies spend tens of thousands of dollars obtaining their permits yearly. It works like this: you enter all of your data to the permit website. They in turn forward all of that same data to the state DOT office. Then the DOT issues your company a permit. Sometimes it’s sent to you direct and other times it’s forwarded depending on the state rules and regulations. The bottom line here is that heavy haul and oversize carriers can now simply deal with the state direct without paying someone in the middle. Why bother? Back in the day this was a necessary service but these days totally unnecessary. You just need a little know how to get rolling.

You can be ordering your own permits with the same amount of effort on your own today.

Odds are if you are using a trucking permit company that all of your data is already in the state DOT database. That’s right. The trucking permit company that you’ve been forking the extra dough to had to forward your DOT info, insurance and VIN numbers to the state anyway so odds are they already have it all on file. We can get you rolling in no time. In fact, 3 simple steps. Check this out.

  1. If you’d like to create an account simply call: 515-237-3264 48 hours in advance. Or if you need to get a quick permit you can print and fax this application and fax it to the number on it.
  2. If you have an account and you wish to login to it you may do so by clicking here. Or by clicking here and then clicking on “Request Permits” as some browser do not like the pop-up window.
  3. Kick back a relax! A whole team of professionals is scurrying to get your trucking permit approved!

Hey is that killer or what? Talk about saving some money. It will take you a little while to get into the swing of all of this but once you do it will become routine and you will be on your way to saving huge amounts of money over a relatively short period of time. If you’d like to share this with others you can click the green button above or if you’d like to comment to help out other visitors please do so below. Thanks for visiting us!