Truck weight limits
Indiana
✓ Sources verifiedEditorial review pending credentialed reviewer4 primary sources
Indiana follows the federal baseline — 20,000 lb single axle, 34,000 lb tandem, 80,000 lb gross as the cap on its bridge-formula calculation — with 8 feet 6 inches width and 13 feet 6 inches height. A pre-1975 schedule (73,280 lb) survives in the statute for undesignated highways, but the section applies whichever limit is greater, so 80,000 lb governs.
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]Cap on the bridge-formula calculation. The older 73,280 lb schedule in (c) applies only where it yields more. Natural gas +2,000 lb; APU +400 lb. | IC 9-20-4-1(a)(1) |
| Max single axle | 20,000 lb[1]Also 800 lb per inch of tire width. | IC 9-20-4-1(a)(3) |
| Max tandem axle | 34,000 lb[1]Individual axle within the tandem capped at 20,000 lb — (a)(2)(B). | IC 9-20-4-1(a)(2)(A) |
| Oversize permit above (width) | 102 in[2]Stated as 8 ft 6 in, excluding width-exclusive devices under 23 CFR 658.15. | IC 9-20-3-2(a) |
| Oversize permit above (height) | 13.5 ft[2] | IC 9-20-3-3(a) |
| 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.[3]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.[3]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
- IC 9-20-4-1 — Weight limits — Indiana General Assembly
- IC 9-20-3-2, 9-20-3-3 — Width and height limits — Indiana General Assembly
- 49 CFR § 383.51 — Disqualification of drivers — U.S. Government Publishing Office
- Ind. Code § 9-21-5-2 — Maximum speed limits; violation — Indiana General Assembly
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.