Texas Oversize / Overweight Permit Requirements
Legal-without-permit dimension limits, escort and pilot car thresholds, height pole rules, daylight-only windows, and holiday restrictions for Texas oversize moves.
Legal limits without a permit
In Texas, you can move a load without an OSOW permit up to these dimensions on the Interstate and designated highways. Anything over the limits requires a permit (and may require escorts — see below).
| Dimension | Without a permit | Permit required when |
|---|---|---|
| Width | 8′6″ (federal limit) | Anything wider |
| Height | 13′6″ | Anything taller |
| Combo length | 75′0″ | Anything longer |
| Gross weight | 80,000 lb | Anything heavier |
Escort and pilot car thresholds
When permitted, the following escort or movement-restriction rules apply in Texas. Thresholds are conservative — your specific permit conditions may impose tighter limits depending on the route.
| Trigger | Dimension | Threshold | Detail |
|---|---|---|---|
| Front pilot car | Length | 110'0" | Lead car required for combo lengths over 110'. |
| Police escort | Width | 20'0" | Texas DPS escort frequently required for widths 20'+. |
| Height pole | Height | 17'0" | Height pole required for heights over 17'0". |
| Rear pilot car | Width | 16'0" | Add chase for widths over 16'0". |
| Front pilot car | Width | 14'0" | TxDOT requires lead pilot for widths over 14'0". |
Stop tracking these rules by hand.
OverSizeTMS encodes the per-state escort and dimension rules for every state plus DC. Enter the load dimensions and route, and the platform tells you which permits, escorts, and time windows apply automatically.
See how it works →Last updated 2026-06-06. Cross-checked against the state admin code.