Compliance Planning
Permit needs are determined by comparing loaded dimensions and weight against each state's legal limits along the proposed route, not by a single national rule. Start by recording width, height, length, gross weight and axle weights, then check each state your route crosses. Escort, routing and travel-time rules layer on top of the permit itself. Once you know your measurements, use this checklist to identify which states require permits before requesting state-specific detail from the permit hub.
Authoritative reference
This page is a planning guide. Detailed, authoritative reference data lives on the State Oversize Load Permits hub.
Key facts
Decision guide
| If you need to know… | Start here | Why |
|---|---|---|
| Whether my load is legal or needs a permit at all | This guide's measurement checklist | Confirms which dimension or weight figure is over the legal limit before you look up a specific state |
| Exact permit fees, limits and processing times for a state | Permits hub (/permits) | The permits hub holds the authoritative state-by-state reference data |
| Whether escorts or pilot cars apply | Permits hub, then a written quote | Escort triggers vary by state and must be confirmed against your exact dimensions |
| Which trailer to use for the cargo | Trailer types guide (/resources/trailer-types) | Trailer selection affects loaded height and axle distribution, which affects permit needs |
| A cost or timeline estimate | Cost calculator (/cost-calculator) | Combines permit, route and equipment inputs into a planning estimate |
Worked examples
A planter measuring 14 feet wide exceeds standard legal width in most states, which generally triggers an oversize permit and may require escort vehicles above certain width thresholds. The exact escort trigger and permit cost must be confirmed per state on the route.
A skid-mounted compressor with a verified gross weight above the legal limit for the axle configuration used will typically require an overweight permit, and possibly a bridge analysis if the route crosses weight-restricted structures. Axle spacing and configuration affect the outcome.
Quote intake
Related resources
Questions answered
Compare your loaded width, height, length and weight against the legal limits of every state on the route. Exceeding any single limit generally requires a permit in that state.
No. Each state generally issues its own permit, and requirements, fees and processing times differ by state. The permits hub lists state-specific detail.
Escort requirements are typically triggered by specific width, height, length or weight thresholds that vary by state. Confirm the exact threshold for each state on your route.
A superload generally refers to a shipment exceeding standard oversize/overweight thresholds. It typically requires additional engineering review, route surveys and longer lead times.
Yes. Loaded height and axle distribution affect whether a shipment stays within legal limits, so trailer selection and permit planning should be reviewed together.
Use the Permits hub, which maintains the authoritative state-by-state reference for fees, limits and processing times.
Reviewed July 2026. This guide describes a general planning process only. Permit thresholds, escort rules, fees and processing times vary by state and must be verified per jurisdiction and shipment before travel.
Talk to a live dispatcher now or request a detailed transport plan.
