Permit the load.
Protect the route.
A primary-source directory for state oversize and overweight permit authorities, written around the dimensions, weight and route facts required to move industrial machinery.
Federal limits are context—not a trip permit.
FHWA publishes federal Interstate-system weight standards and National Network width rules. The federal government does not issue oversize or overweight movement permits; states control those permits.
Axle spacing, the federal bridge formula, state law, route restrictions, posted structures and the issued permit still control. A carrier must evaluate the complete loaded vehicle and every jurisdiction on the route.
What the carrier needs before permit work begins.
The permit is built around the loaded vehicle—not the catalog weight of the machine alone.
Machine identity and condition
Manufacturer, model, serial number, operating weight, removable components, fluids and the source of every dimension.
Loaded dimensions
Overall length, width and height after trailer, blocking, cribbing, enclosure, tarping and securement are included.
Loaded weight and axle plan
Total gross weight, axle count, axle group weights and spacings for the exact tractor, trailer and configuration.
Origin, destination and route constraints
Pickup and delivery addresses, entrances, local roads, toll facilities, bridges, overhead clearance and construction.
Timing and movement conditions
Requested dates, daylight or curfew restrictions, weather, holidays, escorts, police coordination and utility conflicts.
Chain of custody
Who loads, blocks, braces, transports, stores, unloads, crosses the threshold and places the machine on its foundation.
Official oversize and overweight permit paths by state.
Phone numbers and authority destinations are based on the FHWA state permit-contact directory and were reviewed 2026-09-28. Verify current requirements directly before movement.
Alabama permit authority
FHWA-listed state contact: 800-499-2782. Open the state guide for official permit and route resources.
Research Alabama permits →ALASKAAlaska permit authority
FHWA-listed state contact: 907-365-1200. Open the state guide for official permit and route resources.
Research Alaska permits →ARIZONAArizona permit authority
FHWA-listed state contact: 602-771-2960. Open the state guide for official permit and route resources.
Research Arizona permits →ARKANSASArkansas permit authority
FHWA-listed state contact: 501-569-2381. Open the state guide for official permit and route resources.
Research Arkansas permits →CALIFORNIACalifornia permit authority
FHWA-listed state contact: 916-322-1297. Open the state guide for official permit and route resources.
Research California permits →COLORADOColorado permit authority
FHWA-listed state contact: 800-350-3765. Open the state guide for official permit and route resources.
Research Colorado permits →CONNECTICUTConnecticut permit authority
FHWA-listed state contact: 860-594-2880. Open the state guide for official permit and route resources.
Research Connecticut permits →DELAWAREDelaware permit authority
FHWA-listed state contact: 302-744-2700. Open the state guide for official permit and route resources.
Research Delaware permits →DISTRICT OF COLUMBIADistrict of Columbia permit authority
FHWA-listed state contact: 202-442-4670. Open the state guide for official permit and route resources.
Research District of Columbia permits →FLORIDAFlorida permit authority
FHWA-listed state contact: 850-410-5777. Open the state guide for official permit and route resources.
Research Florida permits →GEORGIAGeorgia permit authority
FHWA-listed state contact: 844-837-5500. Open the state guide for official permit and route resources.
Research Georgia permits →HAWAIIHawaii permit authority
FHWA-listed state contact: 808-831-6700 ext. 107. Open the state guide for official permit and route resources.
Research Hawaii permits →IDAHOIdaho permit authority
FHWA-listed state contact: 800-662-7133. Open the state guide for official permit and route resources.
Research Idaho permits →ILLINOISIllinois permit authority
FHWA-listed state contact: 217-785-1477. Open the state guide for official permit and route resources.
Research Illinois permits →INDIANAIndiana permit authority
FHWA-listed state contact: 317-615-7200. Open the state guide for official permit and route resources.
Research Indiana permits →IOWAIowa permit authority
FHWA-listed state contact: 515-237-3268. Open the state guide for official permit and route resources.
Research Iowa permits →KANSASKansas permit authority
FHWA-listed state contact: 785-368-6501. Open the state guide for official permit and route resources.
Research Kansas permits →KENTUCKYKentucky permit authority
FHWA-listed state contact: 502-564-1257. Open the state guide for official permit and route resources.
Research Kentucky permits →LOUISIANALouisiana permit authority
FHWA-listed state contact: 225-343-2345 or 800-654-1433. Open the state guide for official permit and route resources.
Research Louisiana permits →MAINEMaine permit authority
FHWA-listed state contact: 207-624-9000 ext. 52134. Open the state guide for official permit and route resources.
Research Maine permits →MARYLANDMaryland permit authority
FHWA-listed state contact: 800-846-6435. Open the state guide for official permit and route resources.
Research Maryland permits →MASSACHUSETTSMassachusetts permit authority
FHWA-listed state contact: 781-431-5148. Open the state guide for official permit and route resources.
Research Massachusetts permits →MICHIGANMichigan permit authority
FHWA-listed state contact: 517-241-8999. Open the state guide for official permit and route resources.
Research Michigan permits →MINNESOTAMinnesota permit authority
FHWA-listed state contact: 651-296-6000. Open the state guide for official permit and route resources.
Research Minnesota permits →MISSISSIPPIMississippi permit authority
FHWA-listed state contact: 888-737-0061. Open the state guide for official permit and route resources.
Research Mississippi permits →MISSOURIMissouri permit authority
FHWA-listed state contact: 888-737-0061. Open the state guide for official permit and route resources.
Research Missouri permits →MONTANAMontana permit authority
FHWA-listed state contact: 406-444-7262. Open the state guide for official permit and route resources.
Research Montana permits →NEBRASKANebraska permit authority
FHWA-listed state contact: 402-471-0034. Open the state guide for official permit and route resources.
Research Nebraska permits →NEVADANevada permit authority
FHWA-listed state contact: 800-552-2127. Open the state guide for official permit and route resources.
Research Nevada permits →NEW HAMPSHIRENew Hampshire permit authority
FHWA-listed state contact: 603-271-2691. Open the state guide for official permit and route resources.
Research New Hampshire permits →NEW JERSEYNew Jersey permit authority
FHWA-listed state contact: 609-963-2085. Open the state guide for official permit and route resources.
Research New Jersey permits →NEW MEXICONew Mexico permit authority
FHWA-listed state contact: 505-476-2475. Open the state guide for official permit and route resources.
Research New Mexico permits →NEW YORKNew York permit authority
FHWA-listed state contact: 518-485-2999 or 888-783-1685. Open the state guide for official permit and route resources.
Research New York permits →NORTH CAROLINANorth Carolina permit authority
FHWA-listed state contact: 888-221-8166. Open the state guide for official permit and route resources.
Research North Carolina permits →NORTH DAKOTANorth Dakota permit authority
FHWA-listed state contact: 701-328-2621. Open the state guide for official permit and route resources.
Research North Dakota permits →OHIOOhio permit authority
FHWA-listed state contact: 614-351-2300. Open the state guide for official permit and route resources.
Research Ohio permits →OKLAHOMAOklahoma permit authority
FHWA-listed state contact: 405-425-7012. Open the state guide for official permit and route resources.
Research Oklahoma permits →OREGONOregon permit authority
FHWA-listed state contact: 503-373-0000. Open the state guide for official permit and route resources.
Research Oregon permits →PENNSYLVANIAPennsylvania permit authority
FHWA-listed state contact: 717-787-4680. Open the state guide for official permit and route resources.
Research Pennsylvania permits →RHODE ISLANDRhode Island permit authority
FHWA-listed state contact: 401-563-4582. Open the state guide for official permit and route resources.
Research Rhode Island permits →SOUTH CAROLINASouth Carolina permit authority
FHWA-listed state contact: 877-349-7190. Open the state guide for official permit and route resources.
Research South Carolina permits →SOUTH DAKOTASouth Dakota permit authority
FHWA-listed state contact: 605-224-7364. Open the state guide for official permit and route resources.
Research South Dakota permits →TENNESSEETennessee permit authority
FHWA-listed state contact: 615-741-3821. Open the state guide for official permit and route resources.
Research Tennessee permits →TEXASTexas permit authority
FHWA-listed state contact: 800-299-1700 option 1. Open the state guide for official permit and route resources.
Research Texas permits →UTAHUtah permit authority
FHWA-listed state contact: 801-965-4892. Open the state guide for official permit and route resources.
Research Utah permits →VERMONTVermont permit authority
FHWA-listed state contact: 802-828-2064. Open the state guide for official permit and route resources.
Research Vermont permits →VIRGINIAVirginia permit authority
FHWA-listed state contact: 804-249-5130. Open the state guide for official permit and route resources.
Research Virginia permits →WASHINGTONWashington permit authority
FHWA-listed state contact: 360-704-6340. Open the state guide for official permit and route resources.
Research Washington permits →WEST VIRGINIAWest Virginia permit authority
FHWA-listed state contact: 304-558-9547. Open the state guide for official permit and route resources.
Research West Virginia permits →WISCONSINWisconsin permit authority
FHWA-listed state contact: 608-266-7320. Open the state guide for official permit and route resources.
Research Wisconsin permits →WYOMINGWyoming permit authority
FHWA-listed state contact: 307-777-4376. Open the state guide for official permit and route resources.
Research Wyoming permits →One state approval is not a national pass.
Confirm every state, local road, toll authority, port, bridge, tunnel and destination rule that touches the movement. MBB provides research links, not permits or legal advice.
Forty-eight state guides. 11 shared planning references.
Use one verified loaded configuration, then apply the current authority, route and movement rules for every state the machine enters.
Understand the authority—and every responsibility it does not replace.
Permit approval, carrier authority, cargo protection, rigging competence and the written scope are separate controls. Research each before pickup.
What is an OS/OW permit?
Why permits exist, what they authorize and why a permit is not a safety or insurance warranty.
Read the explainer →INSURANCERigging and shipping insurance
Separate federal filings, auto liability, cargo, riggers liability and the machine's declared value.
Verify the coverage →DUE DILIGENCEVet the carrier and rigger
Identity, authority, insurance, equipment, people, subcontractors and comparable-machine execution.
Open the checklist →LIFT PLANDefine the rigging scope
Survey the site, assign every handoff and match rated equipment to the actual machine geometry.
Build the scope →CLAIMS RECORDDocument condition and custody
Photographs, bills of lading, exceptions, declared value, claim notice and final acceptance.
Protect the record →