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Nationwide permit and route intelligence

State Oversize & Overweight Load Permits: Nationwide Regulations & Directory

What are state oversize and overweight load permits? They are authorizations issued by state or other road-owning authorities for qualifying vehicles or nondivisible loads that exceed applicable legal size or weight limits. Each jurisdiction, route and permit controls the approved dimensions, axle weights, escorts, travel windows and operating conditions.

Find permit guidance Request permit and route review
50 Statesstate permit authority guides
250 Marketscity and industrial-access guides
State-issuedfederal government does not issue permits
Road-owner checkstate, local, bridge, toll and facility scope

Permit responsibility

Match Each Road Segment to the Authority That Controls It

Permit responsibility follows road and facility ownership. A state authorization can be essential without being the only approval required for the shipment.

State highways

The state permit authority reviews movements on the roads and structures covered by its permit system.

Cities and counties

Municipal streets and county roads may require separate permits, police coordination or approved travel windows.

Bridges and toll facilities

Independent bridge and toll owners may control structural review, access, fees and escort conditions.

Ports and private sites

Terminals, plants and jobsites can add appointments, security, staging, gate, crane and internal-road requirements.

Federal size and weight context

Use Federal Baselines as a Starting Point - not a Permit Decision

These Interstate and National Network figures provide context. State exceptions, bridge-formula calculations, route limits and permit conditions still require current verification.

80,000 lb

Federal Interstate gross-weight baseline, subject to the bridge formula and exceptions.

20,000 lb

Federal Interstate single-axle baseline, subject to applicable exceptions.

34,000 lb

Federal Interstate tandem-axle baseline, subject to applicable exceptions.

102 in

General federal width baseline on the National Network; states may permit wider nondivisible loads.

Federal Interstate and National Network context compared with state-controlled permit decisions.
ParameterFederal baselinePermit decision
Gross vehicle weight80,000 lb on the Interstate System, subject to the Federal Bridge Formula and statutory exceptions.States may issue qualifying nondivisible-load permits; permitted weight and route depend on current state review.
Single axle20,000 lb on the Interstate System, subject to applicable exceptions.Permitted axle weight depends on axle configuration, tire capacity, spacing, structures and state rules.
Tandem axle34,000 lb on the Interstate System, subject to applicable exceptions.State permit tables and route analysis control allowable permitted axle-group weight.
Vehicle width102 inches is the general federal width standard on the National Network.States control oversize permits and may impose route, escort, sign and travel conditions.
Vehicle heightFederal law does not establish one nationwide vehicle-height limit.Legal height, overheight permits, route surveys and utility coordination are state and route specific.
Superload classificationNo single federal dimensional or weight threshold applies nationwide.Each state defines its own superload or superheavy review triggers and engineering process.

Federal Bridge Gross Weight Formula

W = 500 × [(L × N) / (N - 1) + 12N + 36]

FHWA defines W as the maximum weight in pounds carried on a group of two or more consecutive axles, L as the distance in feet between the outer axles of that group, and N as the number of axles. The formula is a federal baseline, not a substitute for a state permit or route-specific bridge review.

FHWA states that the federal government does not issue oversize or overweight permits. States may issue permits for qualifying nondivisible loads, and local-road authorization varies by jurisdiction.

National permit directory

Browse Oversize Load Permits by State and Priority Freight Market

Open a state to find its issuing authority, permit system and five connected city or industrial-market access guides for local-road and final-mile planning.

Northeast

11 states · 55 markets
Connecticut Oversize Load Permits

Connecticut Department of Transportation · OS/OW ePermits

CT

Priority city and industrial markets

Hartford permit accessNew Haven permit accessBridgeport permit accessStamford permit accessWaterbury permit access
View Connecticut permit guide
Delaware Oversize Load Permits

Delaware Department of Transportation · Hauling Permits

DE

Priority city and industrial markets

Wilmington permit accessDover permit accessNewark permit accessNew Castle permit accessSeaford permit access
View Delaware permit guide
Maine Oversize Load Permits

Maine Department of Transportation · OS/OW permits

ME

Priority city and industrial markets

Portland permit accessBangor permit accessAugusta permit accessLewiston permit accessPresque Isle permit access
View Maine permit guide
Maryland Oversize Load Permits

Maryland State Highway Administration · Hauling Permits

MD

Priority city and industrial markets

Baltimore permit accessHagerstown permit accessFrederick permit accessSalisbury permit accessAnnapolis permit access
View Maryland permit guide
Massachusetts Oversize Load Permits

Massachusetts Department of Transportation · Highway Division permits

MA

Priority city and industrial markets

Boston permit accessWorcester permit accessSpringfield permit accessNew Bedford permit accessFall River permit access
View Massachusetts permit guide
New Hampshire Oversize Load Permits

New Hampshire Department of Transportation · OS/OW permits

NH

Priority city and industrial markets

Manchester permit accessNashua permit accessPortsmouth permit accessConcord permit accessLebanon permit access
View New Hampshire permit guide
New Jersey Oversize Load Permits

New Jersey Department of Transportation · OS/OW and superload permits

NJ

Priority city and industrial markets

Newark permit accessJersey City permit accessElizabeth permit accessCamden permit accessTrenton permit access
View New Jersey permit guide
New York Oversize Load Permits

New York State Department of Transportation · NYHO

NY

Priority city and industrial markets

New York City permit accessBuffalo permit accessAlbany permit accessSyracuse permit accessRochester permit access
View New York permit guide
Pennsylvania Oversize Load Permits

Pennsylvania Department of Transportation · APRAS

PA

Priority city and industrial markets

Philadelphia permit accessPittsburgh permit accessHarrisburg permit accessAllentown permit accessErie permit access
View Pennsylvania permit guide
Rhode Island Oversize Load Permits

Rhode Island Department of Transportation · OSOW permits

RI

Priority city and industrial markets

Providence permit accessWarwick permit accessCranston permit accessNewport permit accessPawtucket permit access
View Rhode Island permit guide
Vermont Oversize Load Permits

Vermont Department of Motor Vehicles Commercial Vehicle Operations · OS/OW permits

VT

Priority city and industrial markets

Burlington permit accessMontpelier permit accessRutland permit accessBarre permit accessSt. Albans permit access
View Vermont permit guide

Southeast

12 states · 60 markets
Alabama Oversize Load Permits

Alabama Department of Transportation · ALPASS

AL

Priority city and industrial markets

Birmingham permit accessMobile permit accessMontgomery permit accessHuntsville permit accessTuscaloosa permit access
View Alabama permit guide
Arkansas Oversize Load Permits

Arkansas Department of Transportation · Oversize and overweight permits

AR

Priority city and industrial markets

Little Rock permit accessFort Smith permit accessFayetteville permit accessJonesboro permit accessPine Bluff permit access
View Arkansas permit guide
Florida Oversize Load Permits

Florida Department of Transportation · Florida Permit Office

FL

Priority city and industrial markets

Jacksonville permit accessMiami permit accessTampa permit accessOrlando permit accessFort Lauderdale permit access
View Florida permit guide
Georgia Oversize Load Permits

Georgia Department of Transportation · GAPROS

GA

Priority city and industrial markets

Atlanta permit accessSavannah permit accessAugusta permit accessColumbus permit accessMacon permit access
View Georgia permit guide
Kentucky Oversize Load Permits

Kentucky Transportation Cabinet · OWOD

KY

Priority city and industrial markets

Louisville permit accessLexington permit accessBowling Green permit accessOwensboro permit accessPaducah permit access
View Kentucky permit guide
Louisiana Oversize Load Permits

Louisiana Department of Transportation and Development · LaGeaux

LA

Priority city and industrial markets

New Orleans permit accessBaton Rouge permit accessLake Charles permit accessShreveport permit accessLafayette permit access
View Louisiana permit guide
Mississippi Oversize Load Permits

Mississippi Department of Transportation · ExpressPass

MS

Priority city and industrial markets

Jackson permit accessGulfport permit accessPascagoula permit accessHattiesburg permit accessTupelo permit access
View Mississippi permit guide
North Carolina Oversize Load Permits

North Carolina Department of Transportation · NCOS

NC

Priority city and industrial markets

Charlotte permit accessRaleigh permit accessGreensboro permit accessWilmington permit accessAsheville permit access
View North Carolina permit guide
South Carolina Oversize Load Permits

South Carolina Department of Transportation · OSOW Permit Office

SC

Priority city and industrial markets

Charleston permit accessColumbia permit accessGreenville permit accessSpartanburg permit accessNorth Charleston permit access
View South Carolina permit guide
Tennessee Oversize Load Permits

Tennessee Department of Transportation · OSOW permits

TN

Priority city and industrial markets

Nashville permit accessMemphis permit accessKnoxville permit accessChattanooga permit accessClarksville permit access
View Tennessee permit guide
Virginia Oversize Load Permits

Virginia Department of Motor Vehicles · Automated Routing Solution

VA

Priority city and industrial markets

Norfolk permit accessRichmond permit accessVirginia Beach permit accessRoanoke permit accessNewport News permit access
View Virginia permit guide
West Virginia Oversize Load Permits

West Virginia Department of Transportation · OSOW permits

WV

Priority city and industrial markets

Charleston permit accessHuntington permit accessMorgantown permit accessParkersburg permit accessWheeling permit access
View West Virginia permit guide

Midwest

12 states · 60 markets
Illinois Oversize Load Permits

Illinois Department of Transportation · ITAP

IL

Priority city and industrial markets

Chicago permit accessRockford permit accessPeoria permit accessSpringfield permit accessEast St. Louis permit access
View Illinois permit guide
Indiana Oversize Load Permits

Indiana Department of Transportation · EPS

IN

Priority city and industrial markets

Indianapolis permit accessGary permit accessFort Wayne permit accessEvansville permit accessSouth Bend permit access
View Indiana permit guide
Iowa Oversize Load Permits

Iowa Department of Transportation · IAPS

IA

Priority city and industrial markets

Des Moines permit accessCedar Rapids permit accessDavenport permit accessSioux City permit accessCouncil Bluffs permit access
View Iowa permit guide
Kansas Oversize Load Permits

Kansas Department of Transportation · K-TRIPS

KS

Priority city and industrial markets

Wichita permit accessKansas City permit accessTopeka permit accessSalina permit accessDodge City permit access
View Kansas permit guide
Michigan Oversize Load Permits

Michigan Department of Transportation · MiTRIP

MI

Priority city and industrial markets

Detroit permit accessGrand Rapids permit accessLansing permit accessFlint permit accessSaginaw permit access
View Michigan permit guide
Minnesota Oversize Load Permits

Minnesota Department of Transportation · OSOW permits

MN

Priority city and industrial markets

Minneapolis permit accessSt. Paul permit accessDuluth permit accessRochester permit accessSt. Cloud permit access
View Minnesota permit guide
Missouri Oversize Load Permits

Missouri Department of Transportation Motor Carrier Services · Carrier Express

MO

Priority city and industrial markets

St. Louis permit accessKansas City permit accessSpringfield permit accessColumbia permit accessJoplin permit access
View Missouri permit guide
Nebraska Oversize Load Permits

Nebraska Department of Transportation · OS/OW permits

NE

Priority city and industrial markets

Omaha permit accessLincoln permit accessGrand Island permit accessNorth Platte permit accessScottsbluff permit access
View Nebraska permit guide
North Dakota Oversize Load Permits

North Dakota Department of Transportation · E-Permits

ND

Priority city and industrial markets

Fargo permit accessBismarck permit accessMinot permit accessWilliston permit accessGrand Forks permit access
View North Dakota permit guide
Ohio Oversize Load Permits

Ohio Department of Transportation · Hauling Permit System

OH

Priority city and industrial markets

Columbus permit accessCleveland permit accessCincinnati permit accessToledo permit accessAkron permit access
View Ohio permit guide
South Dakota Oversize Load Permits

South Dakota Department of Transportation Motor Carrier Services · OS/OW permits

SD

Priority city and industrial markets

Sioux Falls permit accessRapid City permit accessAberdeen permit accessPierre permit accessBrookings permit access
View South Dakota permit guide
Wisconsin Oversize Load Permits

Wisconsin Department of Transportation · OSOW permits

WI

Priority city and industrial markets

Milwaukee permit accessMadison permit accessGreen Bay permit accessAppleton permit accessSuperior permit access
View Wisconsin permit guide

Southwest

4 states · 20 markets
Arizona Oversize Load Permits

Arizona Department of Transportation · ePRO

AZ

Priority city and industrial markets

Phoenix permit accessTucson permit accessMesa permit accessYuma permit accessFlagstaff permit access
View Arizona permit guide
New Mexico Oversize Load Permits

New Mexico Department of Transportation · E-Permitting

NM

Priority city and industrial markets

Albuquerque permit accessSanta Fe permit accessLas Cruces permit accessFarmington permit accessRoswell permit access
View New Mexico permit guide
Oklahoma Oversize Load Permits

Oklahoma state permit authority · OS/OW permits - authority must be reconfirmed

OK

Priority city and industrial markets

Oklahoma City permit accessTulsa permit accessLawton permit accessEnid permit accessArdmore permit access
View Oklahoma permit guide
Texas Oversize Load Permits

Texas Department of Motor Vehicles · TxPROS

TX

Priority city and industrial markets

Houston permit accessDallas permit accessFort Worth permit accessSan Antonio permit accessCorpus Christi permit access
View Texas permit guide

West

11 states · 55 markets
Alaska Oversize Load Permits

Alaska Department of Transportation and Public Facilities · Commercial Vehicle permits

AK

Priority city and industrial markets

Anchorage permit accessFairbanks permit accessJuneau permit accessKenai permit accessWasilla permit access
View Alaska permit guide
California Oversize Load Permits

California Department of Transportation · Transportation Permits

CA

Priority city and industrial markets

Los Angeles permit accessLong Beach permit accessSan Diego permit accessOakland permit accessSacramento permit access
View California permit guide
Colorado Oversize Load Permits

Colorado Department of Transportation · COOPR

CO

Priority city and industrial markets

Denver permit accessColorado Springs permit accessPueblo permit accessGrand Junction permit accessFort Collins permit access
View Colorado permit guide
Hawaii Oversize Load Permits

Hawaii Department of Transportation · Highways Division permits

HI

Priority city and industrial markets

Honolulu permit accessHilo permit accessKahului permit accessKapolei permit accessKailua-Kona permit access
View Hawaii permit guide
Idaho Oversize Load Permits

Idaho Transportation Department · CVISN permits

ID

Priority city and industrial markets

Boise permit accessIdaho Falls permit accessPocatello permit accessTwin Falls permit accessCoeur d'Alene permit access
View Idaho permit guide
Montana Oversize Load Permits

Montana Department of Transportation · ePART

MT

Priority city and industrial markets

Billings permit accessMissoula permit accessGreat Falls permit accessBozeman permit accessButte permit access
View Montana permit guide
Nevada Oversize Load Permits

Nevada Department of Transportation · Over Dimensional Permit System

NV

Priority city and industrial markets

Las Vegas permit accessReno permit accessSparks permit accessElko permit accessHenderson permit access
View Nevada permit guide
Oregon Oversize Load Permits

Oregon Department of Transportation Commerce and Compliance Division · OS/OW permits

OR

Priority city and industrial markets

Portland permit accessSalem permit accessEugene permit accessMedford permit accessBend permit access
View Oregon permit guide
Utah Oversize Load Permits

Utah Department of Transportation · Motor Carrier permits

UT

Priority city and industrial markets

Salt Lake City permit accessOgden permit accessProvo permit accessSt. George permit accessVernal permit access
View Utah permit guide
Washington Oversize Load Permits

Washington State Department of Transportation Commercial Vehicle Services · OS/OW permits

WA

Priority city and industrial markets

Seattle permit accessTacoma permit accessSpokane permit accessVancouver permit accessEverett permit access
View Washington permit guide
Wyoming Oversize Load Permits

Wyoming Department of Transportation / Highway Patrol · OS/OW permits

WY

Priority city and industrial markets

Cheyenne permit accessCasper permit accessGillette permit accessRock Springs permit accessLaramie permit access
View Wyoming permit guide

Permit and route workflow

Move From Load Facts to an Authorized Transport Plan

  1. 1

    Define the loaded vehicle

    Verify cargo dimensions, gross weight, axle spacings, axle weights, trailer configuration and attachments in transport position.

  2. 2

    Identify every road owner

    Separate state highways from municipal streets, county roads, toll facilities, bridges, ports, terminals and private property.

  3. 3

    Review route feasibility

    Check structures, clearances, turning geometry, construction, grades, seasonal restrictions and first- and last-mile access.

  4. 4

    Coordinate authorizations

    Determine which state, local, bridge, toll, port or facility approvals apply to the proposed movement.

  5. 5

    Confirm operating conditions

    Review authorized travel windows, escorts, signs, lighting, weather conditions, holiday restrictions and utility coordination.

  6. 6

    Dispatch to the written plan

    Carry the issued documents, follow the authorized route and communicate changes before deviating from the approved movement.

Connected planning resources

Continue From Permit Requirements to the Load, Trailer and Route

Permit planning works best when jurisdiction data is connected to the actual machinery, loaded configuration, transport equipment and corridor.

Heavy haul trucking

Plan the complete oversized or overweight movement.

Equipment guides

Verify machine dimensions, weight, condition and attachments.

Trailer guides

Compare deck height, well length, loading method and axle options.

Heavy haul routes

Connect state crossings with corridor and access constraints.

Industry hubs

Review port, energy, manufacturing and construction context.

Project review

Submit the actual load, origin, destination and timing.

Permit questions

Oversize and Overweight Permit FAQ

Who issues oversize and overweight load permits?

The federal government does not issue oversize or overweight vehicle permits. Individual states issue state-road permits, while cities, counties, bridge owners, toll agencies, ports or private facilities may require separate authorization for roads and property they control.

Does one permit cover a multi-state heavy haul route?

No. A multi-state movement generally requires authorization from each state crossed. Local or facility approvals may also be required when the route leaves the state system or enters a port, terminal, municipal street, county road, toll facility or privately controlled site.

What information is normally needed for permit planning?

Start with the complete loaded dimensions, gross and axle weights, axle spacings, trailer configuration, cargo description, origin, destination, requested dates and proposed route. Photos, manufacturer specifications and site-access details may be needed for complex moves.

Are escort requirements the same in every state?

No. Escort, police, height-pole, utility and travel-window requirements depend on the state, route and loaded dimensions. The current issuing authority and the conditions printed on the permit control the movement.

Can a state permit authorize travel on city streets?

Not always. FHWA research documents significant variation in local-road permitting, and many state systems do not issue every local permit. The exact road owner must be identified before assuming the state authorization covers the first or last mile.

Does Heavy Haul Now issue permits?

No. Permits are issued by the responsible government or facility authority. Heavy Haul Now can review shipment information and coordinate the permit, routing and access workflow with the appropriate parties.

Official sources and verification

Federal context and state permit-office contacts were checked against the FHWA Office of Freight Management and Operations on August 2, 2026. State and local operating rules must be rechecked with the current issuing authority for the proposed route before movement.

FHWA permit contacts FHWA Bridge Formula guide FHWA local permit variation report

Review the load before requesting permits

Share the loaded dimensions, axle data, origin, destination, requested dates and site-access details so the permit and route responsibilities can be identified.

Request permit and route review

Permit Silo

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Jurisdiction pages for oversize and overweight approvals in every state.

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