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Texas State Regulations - Oversize Shipping, Trucking and Transport

Texas State Trucking Information website:


Additional resource link below as well.

Texas regulations and rules for DOT trucking permits for oversize and overweight loads.

Texas State Flag.


Legal Loads:
Length: Trailer length maximum is 65' - WE NEED THIS CONFIRMED PLEASE EMAIL US.
Width: 8 6 wide.
Height: 14  tall.
Weight: 80,000 lbs. GVW, 20,000 single, 34,000 tandem.
Overhang: 4' in the rear and 3' in the front.

Routine over-weight, oversize shipping, trucking and transport permits:
Length: 125' long.
Width: 15' wide.
Height: Texas is a pretty liberal state on height as 18' 11" in the mark for route survey.
Weight: Texas DOT is incredible; 200,000 pounds routine permits! Single 25,000 lbs., 46,000 lbs. max on Tandem, 60,000 lbs. max on a Tridem axle, 40,000 lbs. on a quadem, 5 axels 105,000 lbs, 6 axles 119,000 lbs. 7 129,000 lbs.
Overhang: Go again Texas DOT!  Front overhang is 25' and rear overhang is 30' in length for routine DOT trucking permits.  Incredible!

Travel times and restrictions:
The one half hour before sunrise and one half hour after sunset rule applies.  No night time travel is permitted in the state of Texas if the shipment is in excess of 100' long or 10' wide on the Interstate highways only. If the shipment is ONLY overweight it may travel at night on any roads.  Weekend travel is permitted.  You can travel on some holidays but there are some limits; if the length is in excess of 110' long, height is in excess of 16' or width is excess of 14' you may NOT travel on the following holidays: New Years day, Memorial day, Independence day, Labor day, Thanksgiving day and Christmas day. The Texas state DOT permit office is closed on these days as well. Texas does have a LOT of travel time curfews in high density traffic areas. These typically range from 6-9 am and 3-6 pm (this is NOT exact).  Each permit issued by the Texas DOT will specifically state exactly what the curfew law is. In fact, the permit is NOT valid without the curfew laws attached to it.

When pilot car or escort vehicle is needed:
Length: If shipment is over 110' in length and up to 125' you will need 1 pilot car in the rear.  Over 125' in length requires 1 pilot car (escort) in the front and 1 on the rear.
Width: Shipments 14' to 16' wide will require 1 pilot car vehicle in the front on a 2 lane road and 1 on the rear on a 4 lane road.  If shipment is in excess of 16' 1 front and 1 rear pilot car (escort) will be required on all shipments on all roads and highways.
Height: If height of load exceeds 17' a front high pole car is required. If the shipment is over 18' in height you will be required to have 1 high pole and 1 rear escort.
Weight: If the shipment is able to maintain minimum speeds no escort vehicle is required.
Overhang: Since the time of this publishing the laws is as follows:  Front overhang up to 25' on a 2 land road requires 1 pilot car (escort) in the front. On a 4 lane front overhang up to 25' requires 1 pilot car (escort) on the rear.  Rear overhang; over 20' but not more than 30' requires one pilot car (escort) on the rear of shipment.

Pilot car and escort vehicle requirements:
All pilot cars/escort vehicles must display either both bumpers or 1 roof mounted "OVERSIZE LOAD" or "WIDELOAD" sign (which ever is applicable) visible from both the front and rear of the vehicle and only displayed while working. Sign must be at least 5' long but no greater than 7' and 12" in height but no greater than 18" in height, yellow in color with black letters no less than 8" in height but no more than 10" in height and lettering must be a minimum of 1.4" in width. Vehicle must be equipped with 2 horizontally mounted rotating (if rotating 8" base is required) (or strobe) amber colored flashing or strobe light which must be visible from a 360 degree angle from a minimum of 500 feet. Vehicles must be equipped with a CB radio or 2-way communication device and be in constant communication with all parties assigned to the movement. 

It is only our express opinion that pilot cars also have a minimum of the additional items but not required:  2 - 5 pound fire extinguishers type A, B and C, a paddle sign with the word "STOP" on one side and "SLOW" on the other with dimensions of no less than 18" in diameter with a minimum of 6" letters. A red safety colored flag with a handle no less than 18" square, 3 reflective emergency road triangles or 18" traffic cones, 8 burning road flares, 2 OVERSIZE LOAD banners (yellow with black lettering) and a safety colored (red, orange, yellow or lime green) vest, jacket or shirt (used while directing traffic).

Texas DOT and permit contact information:
Physical address:
Texas State Department of Transportation
4000 Jackson St.
Austin, TX 78731-2483

Help telephone line: 512-465-3565 or 800-299-1700 option 1 or 2.
Fax: 512-465-3565
Hours: Monday - Friday 6:00 am - 6:00 pm and 2 pm on Saturdays
Central Time Zone

Click here for the Texas state DOT website for oversize and over-weight hauling permits.


Texas official state seal.

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