Truck weight limits
Alabama
✓ Sources verifiedEditorial review pending credentialed reviewer2 primary sources
Alabama holds single axles to 20,000 lb and, on the Interstate system, tandems to 34,000 lb with an 80,000 lb gross cap including allowable load tolerance. Off the Interstate, gross weight follows a Computed Gross Weight Table reaching 84,000 lb for six axles at 44 feet or more. Dimensions are 102 inches by 13 feet 6 inches.
At a glance
Max gross weight84,000 lb
Max single axle20,000 lb
Max tandem axle34,000 lb
Permit (width)102 in
Permit (height)13.5 ft
vs. federal gross+4,000 lb
1 Limits and thresholds
| Property | Value | Authority |
|---|---|---|
| Max gross weight | 84,000 lb[1]Computed Gross Weight Table maximum (6 axles, 44 ft and over), off-Interstate. Interstate cap is 80,000 lb including tolerance. APU allowance +400 lb. | § 32-9-20(a)(3)b. |
| Max single axle | 20,000 lb[1] | § 32-9-20(a)(3)a.1. |
| Max tandem axle | 34,000 lb[1]Stated in the Interstate paragraph, including allowable load tolerance. Off-Interstate tandem weight is governed by the Computed Gross Weight Table, not a stated figure. | § 32-9-20(a)(3)a.3. |
| Oversize permit above (width) | 102 in[1] | § 32-9-20(a)(4) |
| Oversize permit above (height) | 13.5 ft[1] | § 32-9-20(a)(1) |
| CDL disqualification — first major | 1 year for a first conviction while operating a CMV or a non-CMV; 3 years if operating a CMV transporting placarded hazardous materials. Applies to alcohol/controlled-substance influence, 0.04+ BAC in a CMV, test refusal, leaving the scene, using the vehicle in a felony, driving while disqualified, and causing a fatality by negligent operation.[2]Federal floor. A state may impose longer periods but may not go below this; verify state law before relying on it. | § 383.51(b), Table 1 |
| CDL disqualification — lifetime | Life for a second conviction of any combination of the Table 1 major offences in a separate incident. A state MAY reinstate after 10 years following an approved rehabilitation programme — § 383.51(a)(6) — but not after a subsequent disqualifying conviction. Felony manufacture/distribution of a controlled substance, and severe forms of human trafficking, draw life with NO 10-year reinstatement.[2]Federal floor. The 10-year reinstatement is permissive — states are not required to offer it. | § 383.51(a)(6), (b) Table 1 items (9)–(10) |
2 Sources
- Ala. Code § 32-9-20 — Size and weight limits — Alabama Legislature (ALISON)
- 49 CFR § 383.51 — Disqualification of drivers — U.S. Government Publishing Office
Review record
Every figure above was transcribed from the primary source cited beside it and carries a pinpoint locator. Editorial review by a credentialed reviewer is pending.