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2022 Wyoming State Shipping Regulations

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2022 Wyoming State Shipping Regulations, Limitations, Rules and Laws for the Trucking of Oversize and Over-Weight Loads on Roads and Highways

Share your knowledge and expertise of the Wyoming regulations or helpful information at the bottom of this page.

Wyoming State DOT Trucking Permits

Wyoming oversize and heavy haul trucking permits.


Legal Load Limits in Wyoming

Length:  for trailers up to 60′ long.
Width: 8’ 6” wide.
Height: 14’ tall.
Weight: 80,000 lbs. GVW, 20,000 single, 34,000 tandem.
Overhang: No limit on overhang stated.

Routine-issued Oversize and Heavy Haul Trucking Permits in Wyoming

Routine over-weight, oversize shipping, trucking, and transport permits:

Length: Up to 90′ long on a single unit and 110′ on a combined unit.
Width: Up to 18′ wide depending on routing.
Height: 17′
Weight: Single 25,000 lbs., tandem axle 55,000 lbs., tridem axle 65,000 lbs., 74,000 lbs. with a gross weight determined by your axle configurations.  For loads exceeding 150,000 pounds expect permit issuance time delays.

Overhang: It’s pretty good in Wyoming as they have nothing is specified directly.

Notes:  Wyoming like to issue permits at their ports of entry.  Make sure you call well in advance if you plan on traveling through this state.  Any load that is over 18′ wide, 17′ tall or up to 250,000 lbs will need to be reviewed by the state.  It can take up to 2 weeks for approval.  If you have odd axle configurations, expect trouble.

Travel Times in Wyoming

Travel times and restrictions in Wyoming:

Night time travel is permitted for the shipment of loads under 10′ wide and under 90′ in length overall on interstate roads only.  Shipment must display amber lights and appropriate banners for night movement.  Oversize and overweight shipments may travel one-half hour before sunrise until one-half hour after sunset.  No holiday travel is permitted if you are being escorted on any of the following holidays; New Years day, Memorial day, Independence day, Labor day, Thanksgiving day and on Christmas day.  If the holiday causes a 3-day weekend you will not be allowed to travel on the day before or after the 3-day period.  If the holiday falls on a Saturday and your shipment is required to be escorted you may not travel on Friday morning and travel does not resume again until Monday morning.  If the holiday is on a Sunday and you are required to be escorted you must cease travel on Friday evening and travel does not resume again until Tuesday morning.

When Pilot Cars Are Needed in Wyoming.

Pilot Car and Escort vehicle information:

Length: If shipment is over 110′ long you will require 1 front and one rear pilot car (escort).
: If shipment is over 14′ in width you will be required to have 1 front and 1 rear pilot car (escort).
Height: It all depends on the proposed routing.  If the height of the load exceeds 15′ you will “probably” be required to have a front high pole escort but not positively. If height is 17′ you will more than likely be required to have a high pole escort in the front of the load.   Call and speak with them directly for clarification.
Weight: Check with the Wyoming port of to see if your weight class will require a pilot car/escort.
Overhang: No specified limits.  This is something they like to see for themselves at the ports.  If your load is secure and safe looking but not too long overall and have flags/amber lights then you will possibly not be required to have a pilot car.

Wyoming Pilot Car Requirements to Operate

Pilot car and escort vehicle requirements:

No motorcycles are allowed.  The vehicle must be equipped with a horizontally mounted rotating (or strobe) amber-colored flashing light no less than 4″ in diameter which must be visible from a 360-degree angle from a minimum of 500 feet.  All pilot cars/escort vehicles must display a bumper or roof mounted “OVERSIZE LOAD” sign visible from both the front and rear of the vehicle. Sign must be at least 5′ long and 10″ in height, yellow in color with black letters no less than 8″ tall and 1 ” in width.  The vehicle must have 2 safety flags red or orange in color and be a minimum of 12″ of length and/or height mounted at a 40 to 70 degree angle on top middle section of the vehicle.  Vehicles must be equipped with a CB radio or 2-way communication device,  at least 1 – 5 pound fire extinguishers type A, B and C, 3 reflective emergency road triangles and extra flags.

Wyoming DOT Contact Information

Contact information:

Physical address:
Wyoming Department of Transportation
5300 Bishop Blvd.
Cheyenne, WY 82009

Help telephone line: 307-777-4376
Fax: 307-777-4399
Hours: Monday – Friday 8:00 am – 5:o0 pm

Mountain Time Zone

Click here for the Wyoming DOT Website for oversize and overweight hauling permits. The port of entry can issue permits for routine shipments and is open 24  hours a day.  You must call in advance.

Ports of entry: Alpine 307-654-7569, Casper 307-473-3280, Cheyenne (I-80) 307-777-4894, (I-25) 307-777-4896, Evanston 307-789-3538, Frannie 307-664-2389, Gillette 307-682-4030 Kemmerer 307-877-4229, Laramie 307-745-2200, Lusk 307-334-3814, Sheridan 307-674-2350, Sundance 307-283-1616 and Torrington 307-532-2519.

Permits are also available at: Basin 307-568-3400, Cody 307-587-2220, Douglas 307-358-5515, Lander 307-332-4151, Pinedale 307-367-4488, Rawlins 307-328-4100, Riverton 307-856-1341, Rock Spring 307-352-3049, Worland 307-347-2822, Wheatland 307-322-2558 and Jackson 307-733-3665.


Wyoming road closure information.

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 Wyoming State DOT Permits office before commencing movement.


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