Truck weight limits
Louisiana
✓ Sources verifiedEditorial review pending credentialed reviewer4 primary sources
Louisiana conditions its axle limits on tire type: 20,000 lb single and 34,000 lb tandem on low-pressure pneumatic tires, dropping to 18,000 and 32,000 lb on high-pressure, solid rubber or cushion tires. Gross weight is 80,000 lb, though triple- and quad-axle vehicles may reach 88,000 lb on non-Interstate state highways. Dimensions are 102 inches by 13 feet 6 inches, rising to 14 feet for Interstate-only operation.
At a glance
Max gross weight80,000 lb
Max single axle20,000 lb
Max tandem axle34,000 lb
Permit (width)102 in
Permit (height)13.5 ft
vs. federal gross0 lb
1 Limits and thresholds
| Property | Value | Authority |
|---|---|---|
| Max gross weight | 80,000 lb[1]Triple/quad-axle vehicles up to 88,000 lb on non-Interstate state highways — § 32:386(I). | § 32:386(A) |
| Max single axle | 20,000 lb[1]Low-pressure pneumatic tires; 18,000 lb on high-pressure, solid rubber or cushion tires — § 32:386(F),(G). | § 32:386(C) |
| Max tandem axle | 34,000 lb[1]Low-pressure pneumatic. Forest products in natural state: 37,000 lb off-Interstate. Tridem 42,000 lb; quadrem 50,000 lb. | § 32:386(D) |
| Oversize permit above (width) | 102 in[2]Exclusive of safety devices. | § 32:380 |
| Oversize permit above (height) | 13.5 ft[3]14 ft for vehicles operating exclusively on the Interstate system. | § 32:381 |
| 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.[4]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.[4]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
- La. R.S. 32:386 — Weight of vehicles — Louisiana State Legislature
- La. R.S. 32:380 — Width of vehicles — Louisiana State Legislature
- La. R.S. 32:381 — Height of vehicles — Louisiana State Legislature
- 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.