Alabama oversize permit rules
What Alabama charges for a single-trip OS/OW permit, the limits that trigger one, and the escort thresholds — read from the state’s own publication. This rule has been in effect since 2025-03-11; we last read the source on 2026-07-06.
$20–$110
The fee steps up in brackets as gross vehicle weight rises, so a light over-width load and a heavy one are not the same permit.
From $10
Scales with weight — there is no single figure.
+ $20 Permigo service fee per permit, state fees at cost.
Legal limits
Exceed any one of these in Alabama and you need a permit for this state.
| Limit | Interstate | Off-interstate |
|---|---|---|
| Width | 8'6" | 8'6" |
| Height | 13'6" | 13'6" |
| Length | 75'0" | 75'0" |
| Gross weight | 80,000 lbs | 84,000 lbs |
| Single axle | 20,000 lbs | |
| Tandem axle | 34,000 lbs | |
| Tridem axle | 42,000 lbs | |
| Trailer length | 57'0" |
What the permit costs
Alabama prices a single-trip permit as by gross weight. The fee steps up in brackets as gross vehicle weight rises, so a light over-width load and a heavy one are not the same permit.
| Band | State fee |
|---|---|
| 80,000–100,000 lbs | $20 |
| 100,000–125,000 lbs | $40 |
| 125,000–150,000 lbs | $70 |
| Over 150,000 lbs | $110 |
Escort requirements
Thresholds by road class. Where two classes differ, the road you are actually on governs.
2-lane
| Width | Requirement |
|---|---|
| Over 12'0" | 1 front escortLoads 12-14 feet wide require one FRONT escort on 2-lane roads (450-3-1-.05(2)(a)). |
| Over 14'0" | 1 front escort + 1 rear escortLoads greater than 14 feet wide require one front and one rear escort on all roads (450-3-1-.05(3)). |
| Over 16'0" | superload permit |
| Height | Requirement |
|---|---|
| Over 15'6" | height poleFront escort with height indicator required for heights in excess of 15'6" (450-3-1-.05(1)). |
| Over 16'0" | superload permit |
| Length | Requirement |
|---|---|
| Over 90'0" | 1 rear escortA single rear escort is required for lengths 90 to 125 feet inclusive (450-3-1-.05(5)(a)). |
| Over 125'0" | 1 front escort + 1 rear escortA front and a rear escort are required for lengths 125 to 150 feet (450-3-1-.05(5)(a)). |
| Over 150'0" | 2 police escorts · route survey · superloadFront and rear LAW ENFORCEMENT escorts are required for lengths in excess of 150 feet (450-3-1-.05(5)(b)); superload: detailed route survey + minimum 2 State Trooper escorts (ALEA 760-X-2). |
| Front overhang | Requirement |
|---|---|
| 10'0" and over | 1 front escort |
| Rear overhang | Requirement |
|---|---|
| Over 5'0" | 1 rear escort |
| Weight | Requirement |
|---|---|
| Over 300,000 lbs | 2 police escorts · route survey · superload |
multilane
| Width | Requirement |
|---|---|
| Over 12'0" | 1 rear escortLoads 12-14 feet wide require one REAR escort on multilane roads (450-3-1-.05(2)(b)). |
| Over 14'0" | 1 front escort + 1 rear escortLoads greater than 14 feet wide require one front and one rear escort on all roads (450-3-1-.05(3)). |
| Over 16'0" | superload permit |
| Height | Requirement |
|---|---|
| Over 15'6" | height poleFront escort with height indicator required for heights in excess of 15'6" (450-3-1-.05(1)). |
| Over 16'0" | superload permit |
| Length | Requirement |
|---|---|
| Over 90'0" | 1 rear escortA single rear escort is required for lengths 90 to 125 feet inclusive (450-3-1-.05(5)(a)). |
| Over 125'0" | 1 front escort + 1 rear escortA front and a rear escort are required for lengths 125 to 150 feet (450-3-1-.05(5)(a)). |
| Over 150'0" | 2 police escorts · route survey · superloadFront and rear LAW ENFORCEMENT escorts are required for lengths in excess of 150 feet (450-3-1-.05(5)(b)); superload: detailed route survey + minimum 2 State Trooper escorts (ALEA 760-X-2). |
| Front overhang | Requirement |
|---|---|
| 10'0" and over | 1 front escort |
| Rear overhang | Requirement |
|---|---|
| Over 5'0" | 1 rear escort |
| Weight | Requirement |
|---|---|
| Over 300,000 lbs | 2 police escorts · route survey · superload |
Movement restrictions
| Restriction | In Alabama |
|---|---|
| Night travel | Daylight hours only |
| Weekends | Restricted |
| Holidays | Restricted |
Movement hours (Ala. Admin. Code 450-3-1-.04(2), verified 2026-07-06)
| Load | Window |
|---|---|
| Any permitted load | daylight hours only |
| Sundays | NO travel at any time ('Travel is not permitted at any time on Sundays…') |
| 6 holidays | banned (sunset before → sunrise after): New Year's, Memorial, Independence, Labor, Thanksgiving, Christmas |
| Exceptions | sealed ocean containers 24/7 (.08(1)(f)); superloads move 9 p.m.–6 a.m. by special window |
Where these permits come from
If you file yourself, this is the office you are dealing with. Check the linked page — some states issue OS/OW permits through their highway patrol or revenue department rather than the DOT.
| Alabama permit office | |
|---|---|
| Permit office | (800) 499-2782 |
| [email protected] | |
| Permit portal | alpass.dot.state.al.us |
| Information | Official page |
ALDOT PermitFee2025.pdf (rev. 2025-03-11) + SuperloadInformation.pdf + R&R (eff. 2017-06-01) · dot.state.al.us · in effect since 2025-03-11 · source read 2026-07-06. Fees and rules change; the linked document is always the authority.