Do You Need a Texas Trucking Permit?
DOT Office
4000 Jackson Ave.Austin, TX 78731
Permit Office
Monday - Friday
6:00 AM - 6:00 PM Central Time
Saturday
6:00 AM - 2:00 PM Central Time
512-465-4248
Permit Types
Permit Validity
Single Trip Trucking Permits Valid for 5 consecutive days.
Transportation Restrictions
The following holidays are restricted for loads over 14’ wide, 16’ high, or 110’ long: New Year’s Day, Memorial Day, Independence Day, Labor Day, Thanksgiving, and Christmas.
Travel restricted when visibility is reduced to less than 2/10 of a mile, or when the road surface is hazardous due to weather such as wind, ice, or snow, or during highway maintenance.
Weekend Travel
Saturday and Sunday travel allowed for transports 14′ wide, 16′ high or 110′ long and under.
Transportation Requirements
Provision Regulations
Superloads
Anything over Routine Issue dimensions require special approval from the DOT.
Oversize Load Signs
Signs are only required on escort vehicles.
Flags/Lights
Flags should be placed on all extremities.
Legal Limits
| Component | Restriction |
|---|---|
| Single Axle | 20,000 lbs. |
| Tandem Group | 34,000 lbs. |
| Tridem Group | 42,000 lbs. |
| Gross Weight | 80,000 lbs. |
| Width | 8'6" |
| Height | 14' |
| Length - Semi-Trailer | 59' |
| Overhang | 3' Front | 4' Rear |
Routine Issues
| Component | Restriction |
|---|---|
| Single Axle | 25,000 lbs. |
| Tandem Group | 46,000 lbs. |
| Tridem Group | 60,000 lbs. |
| Quad Group | 70,000 lbs. |
| Gross Weight | 254,300 lbs. |
| Width | 20’ Regular | 16’ Interstate |
| Height | 18'11" |
| Length | 125' |
| Height | 25’ Front | 30’ Rear |
Escort Requirements
| Dimension | Requirement |
|---|---|
| Width Over 14’ | 1 Front On 2-Lane Highways | 1 Rear On 4-Lane Highways |
| Width Over 16’ | 2 (Front & Rear) |
| Height Over 17’ | 1 Front W/ Height Pole |
| Height Over 18’ | 2 (Front W/ Height Pole and Rear) |
| Length Over 110’-125’ | 1 Front On 2-Lane Highways | 1 Rear On 4-Lane Highways |
| Length Over 125’ | 2 (Front & Rear) |
| Overhang Over 20’ | 1 Front or Rear depending on the Overhang |
