Trucking Permits by State: The Complete Hub

There is no single "trucking permit" that covers the whole United States. Instead, there is a stack of credentials: federal authority and identification, apportioned registration and fuel-tax licensing that travel with you across states, and then state-specific permits that apply only when you run in, through, or into particular states or particular kinds of work. New carriers get into trouble not because they ignore permits entirely, but because they assume one credential covers a different job. Your MC authority does not pay New York's highway use tax. Your IFTA license does not give you California intrastate authority. Your IRP plate does not get you into a port.

This hub is designed to be the page you bookmark and return to. It explains each layer of the system, gives you the state permits that trip up the most new carriers, and points you to the state-specific guides in this series by title. Those state guides are where the step-by-step filing details live. This hub gives you the map; the state guides give you the turn-by-turn directions. Use both together, and check the state agency's own site before you file, because fees, forms, and filing portals change.

The Three Layers Every Carrier Should Understand

Think of permits in three layers. The federal layer is your USDOT number and, for for-hire interstate carriers, your MC operating authority, plus the supporting filings that go with them, such as the BOC-3 process-agent filing and Unified Carrier Registration. The multi-state layer is IRP apportioned registration and the IFTA fuel-tax license, which let you operate across member states and provinces under one registration and one fuel-tax account instead of buying a plate and a fuel permit in every state. The state layer is everything else: intrastate authority, weight-distance taxes, trip and fuel permits for states where you are not covered, oversize and overweight permits, and special programs such as port drayage registration and agricultural or hazardous-materials permits.

The most common beginner mistake is confusing layers. A carrier with interstate authority sometimes assumes it can haul a load that both starts and ends inside a state that requires its own intrastate authority. Often it cannot, at least not without that state's credential. Conversely, a carrier with only intrastate authority sometimes accepts an interstate load, which its state credential does not authorize. The load's origin and destination, not the truck's home base, decide which layer applies. If the freight crosses a state line, it is interstate. If it starts and ends in the same state, it is intrastate, even if the truck itself is registered elsewhere.

A second common mistake is treating a tax credential as a permit, or a permit as a tax credential. Some state credentials are both: they register you for a tax and give you a document to carry. Others are pure permission for a single trip or a single oversize load. Keep the distinction in mind when you read state agency pages, because the agency may call a tax registration a "permit," a "license," a "certificate," or an "account," and the name alone will not tell you what it does.

Federal and Multi-State Credentials First

Before you worry about any single state, get the base credentials right. Every carrier subject to federal safety rules needs a USDOT number. For-hire carriers hauling regulated freight interstate need MC operating authority as well; private carriers hauling their own goods interstate generally need the USDOT number but not MC authority. Your authority must be active, your insurance must be on file, and your BOC-3 must name a process agent in each state where you operate. None of these steps is a state permit, but every state permit application will ask about them, and a lapsed federal credential can block a state filing.

IRP and IFTA are the two credentials that save interstate carriers from buying dozens of separate plates and fuel permits. IRP apportions your registration fees among the states and provinces where you operate, based on your mileage, and gives you one plate. IFTA gives you one fuel-tax license and a set of decals, and you file a single quarterly return that reconciles fuel taxes across member jurisdictions. Together, they cover the ordinary case: a registered, fueled truck running legal-weight freight on interstate highways. They do not cover weight-distance taxes, intrastate authority, oversize loads, or port access, which is why this hub exists.

Intrastate Authority: When a State Wants Its Own Permission

Roughly half the states require a separate intrastate operating authority if you haul for hire entirely within that state. The names vary: motor carrier permit, certificate of authority, intrastate operating authority, or a state motor carrier registration number. The core question is the same in every state: does this state require its own permission before you haul a load that starts and ends inside its borders?

California is the best-known example. California's Motor Carrier Permit, issued by the Department of Motor Vehicles, is required for carriers operating in California, and the state also issues a CA number through the California Highway Patrol that you need before the permit can be issued. An out-of-state carrier that both picks up and delivers in California and is subject to Unified Carrier Registration requirements can also need a permit, so "I am based elsewhere" is not a safe assumption. Proof of liability insurance, workers' compensation coverage where applicable, and enrollment in the Employer Pull Notice program for carriers that employ drivers are part of the California package.

Texas is another major example. The Texas Department of Motor Vehicles requires a TxDMV number for intrastate operations by vehicles meeting its thresholds, including combinations over 26,000 pounds, placarded hazardous materials, and household goods for compensation regardless of weight. The TxDMV number is in addition to, not instead of, a USDOT number. If you run both interstate and intrastate in Texas, you generally need both the federal authority and the Texas registration.

Other states with their own intrastate systems include Illinois, New York, Pennsylvania, and Ohio, among others. The full list and the filing steps for each are in the state-specific guides in this series, listed at the end of this article. The practical rule for a new carrier is simple: before you accept your first intrastate load in a state, search that state's transportation or motor vehicle agency for its intrastate motor carrier requirement, and do not dispatch the load until you know whether a credential is required and whether you hold it. A broker who offers you the load will not always check for you.

Weight-Distance Taxes: The Five States That Charge by the Mile

Five states charge heavy trucks a tax based on the miles driven inside the state, scaled by weight, on top of IFTA fuel tax and IRP registration: Kentucky, New Mexico, New York, Oregon, and Connecticut. Every other state has no weight-distance tax. If you run a heavy truck in any of these five, you need to register before your first trip, track your miles in that state, and file on the schedule the state assigns. Running without the credential can mean fines and delays at a scale or inspection.

Kentucky's weight-distance tax is known by its KYU number. It applies at a combined licensed weight of 60,000 pounds or more. Once issued, the KYU license does not require annual renewal in the usual sense, but quarterly mileage reports must still be filed. New York's Highway Use Tax applies to vehicles with a gross weight over 18,000 pounds, with an unloaded-weight method that can also trigger the requirement for lighter trucks and tractors, and it requires a certificate of registration and decal. Toll-paid Thruway miles are excluded from the New York calculation, while other public highways count.

New Mexico's Weight Distance Tax applies to vehicles with a declared gross weight over 26,000 pounds operating on New Mexico highways, with quarterly returns. Oregon's Weight-Mile Tax applies to vehicles with a declared combined weight over 26,000 pounds, is filed monthly unless quarterly filing is approved, and Oregon requires a surety bond for registered carriers. Connecticut's Highway Use Fee applies to vehicles of 26,000 pounds or more in the heavier federal highway classes, and is filed quarterly. Oregon is the special case in this group: heavy trucks there generally pay the weight-mile tax instead of fuel tax at the pump, while in the other four states you owe both the weight-distance tax and IFTA.

If you only pass through one of these states occasionally, ask the state whether a temporary or trip credential is available instead of a full account. Oregon, for example, offers temporary passes for infrequent trips, which can be simpler than a full registration with a bond and monthly returns. Do not guess: a one-off trip without any credential is still a trip without a credential, and the fine does not shrink because the trip was short.

Trip Permits, Fuel Permits, and Temporary Registration

Trip permits fill the gaps that IRP and IFTA leave. If you are not apportioned for a state, or you do not hold an IFTA license, you generally need a temporary trip permit, a fuel permit, or both before entering that state with a commercial vehicle over the state's threshold, commonly 26,000 pounds. These permits are usually valid for a short, defined period and a single trip or a small number of days. Buy the permit before you enter the state, not at the scale house after you are stopped, and carry it in the truck with the other credentials for that trip.

Temporary IRP registration works the same way for carriers that are not yet apportioned for a state or that add a state to their operation. The key discipline is the same in every case: check your IRP cab card and your IFTA license against your actual route before you dispatch. A route change that adds a state can create a permit need that did not exist when the load was booked. Build that check into your dispatch routine, even if it is just you checking your own route, so a last-minute reroute does not become a roadside problem.

Oversize, Overweight, and Special Load Permits

Standard legal limits in most states are 80,000 pounds gross vehicle weight, 8 feet 6 inches wide, and 13 feet 6 inches high, with length limits that vary by state and configuration. Exceed any of them, and you need an oversize or overweight permit for each state you travel through, on top of everything else in this hub. These permits are load-specific and route-specific: a permit for one load on one route does not authorize a different load, a different route, or a return trip with different dimensions.

Oversize permits often come with conditions that a new carrier should read before accepting the load, not after. Travel may be restricted to daylight hours, escorts may be required above certain widths, and specific routes may be mandated or prohibited. Some states issue single-trip permits only, while others offer annual permits for loads that repeatedly exceed limits by a small amount. If you do not run oversize freight regularly, the safest approach is to price the permit, the escort if required, and the extra time into your quote, and to confirm the permit is in hand before the truck is loaded. A loaded oversize truck sitting at a shipper while a permit is processed is a cost you will absorb.

Port Drayage and Other Gated Work

Port drayage is the clearest example of gated work: you cannot simply drive into a port because you hold interstate authority. Ports and terminals generally require registration with the port or terminal system, a Transportation Worker Identification Credential for drivers who need unescorted access to secure areas, and, for intermodal work, an interchange agreement under the Uniform Intermodal Interchange and Facilities Access Agreement, commonly called UIIA, with the equipment provider whose chassis or container you will haul. Some ports also run their own truck registries or clean-truck programs with equipment standards.

The lesson generalizes beyond ports. Any gated facility, military base, or secure site can have its own access credential, and the shipper or broker who offers the load may not list it in the load details. Ask, for every new kind of gated work, what credential the driver will need at the gate, how long it takes to obtain, and whether it is tied to the driver, the truck, or the company. A TWIC application, for example, takes time to process, so it cannot be obtained the morning of a port load. Build gated-work credentials into your onboarding for a lane, not into your dispatch for a single load.

The same logic applies to state-specific programs that are not strictly permits but function like them at the roadside. New York's HUT decal, Kentucky's KYU number, and Oregon's weight-mile account are all documents an inspector may ask to see. Keep every credential, decal, and trip permit organized in the truck and in a backup file at home or in the office, so a lost document does not become a missed delivery.

How to Check a State Before You Run There

Build a short pre-trip permit check into your workflow. First, confirm the load is intrastate or interstate, because that determines whether the state's own authority applies. Second, check your IRP cab card and IFTA license for that state. Third, check the weight-distance tax list: if the state is Kentucky, New Mexico, New York, Oregon, or Connecticut and your truck is over the weight threshold, confirm your account is active. Fourth, check for gated work: ports, military bases, and secure sites may need credentials that take days to obtain. Fifth, check the oversize and overweight limits against your actual load, not the load you expected.

For the actual filing, always start from the state agency's own site, not from a third-party summary or a permit service's landing page, unless you have deliberately chosen to use a service. Agency pages change their forms, their fees, and their filing portals without notice, and a summary written last year may describe a process that no longer exists. If you use a permit service, confirm exactly which credentials they will file, which they will not, and who is responsible for renewals and quarterly returns. A service that files your Kentucky KYU account but does not file your quarterly mileage reports has left half the job undone.

Finally, keep a permit sheet for your company. One page, updated whenever a credential changes, listing every credential, its number, its renewal date, the states it covers, and where the physical document is kept. Tape a copy inside the truck's document binder and keep a digital copy in a shared folder. When a driver is stopped and asked for a document, the permit sheet tells them which document to reach for. When a credential expires, the permit sheet tells you before the state does.

State-Specific Guides in This Series

For the filing steps, fees, and agency links for individual states, see the state guides in this series:

• Texas Trucking Permits and Intrastate Authority: The Complete TX Guide
• California Trucking Permits, CA Number and CARB Rules Explained
• Florida Trucking Permits and Intrastate Authority Guide
• New York HUT, NY Intrastate Authority and NYC Rules
• Kentucky KYU, Intrastate Authority and Oversize Permits
• Oregon Weight-Mile Tax, Trip Permits and Bonds
• Illinois Intrastate Authority and Oversize Permits
• New Mexico Weight Distance Tax and Trip Permits
• Connecticut Highway Use Fee and Intrastate Rules
• Georgia Intrastate Authority and Oversize Permits
• Ohio Intrastate Authority and Oversize Permits
• Pennsylvania PUC Authority and Oversize Permits

Frequently Asked Questions

Do I need a separate permit for every state I drive through?

No. For ordinary legal-weight interstate freight, your USDOT number, MC authority, IRP registration, and IFTA license cover you in most states. You need extra state credentials only where a state imposes its own requirement, such as intrastate authority for loads that start and end inside the state, a weight-distance tax for heavy trucks in five states, an oversize or overweight permit for a load that exceeds legal limits, or a gated-work credential for a port or secure site.

What is the difference between IRP and IFTA?

IRP is registration: one apportioned plate and one cab card that cover the states and provinces where you operate, with fees split by mileage. IFTA is fuel tax: one license and one quarterly return that reconcile the fuel taxes you owe across member jurisdictions, based on miles driven and fuel purchased in each. You need both for interstate operation, and neither replaces a state weight-distance tax, intrastate authority, or oversize permit.

Which states charge a weight-distance tax?

Five: Kentucky (KYU, at 60,000 pounds or more), New York (Highway Use Tax, over 18,000 pounds), New Mexico (Weight Distance Tax, over 26,000 pounds), Oregon (Weight-Mile Tax, over 26,000 pounds), and Connecticut (Highway Use Fee, 26,000 pounds or more in the heavier federal highway classes). Oregon is the exception in that heavy trucks there generally pay the weight-mile tax instead of fuel tax at the pump; in the other four, you owe both the weight-distance tax and IFTA.

Do I need intrastate authority if I already have interstate authority?

Often yes, if the state requires it. Interstate authority authorizes loads that cross state lines. It does not automatically authorize loads that start and end inside a state that has its own intrastate authority system, such as California or Texas. If you plan to haul intrastate loads in a state, check that state's requirement before you accept the load.

What happens if I run without a required permit?

Consequences vary by state and by credential, but typically include fines, being held at a scale or inspection station until the credential is obtained, and in serious or repeat cases, an out-of-service order. Some violations also create a record that can affect your safety rating or your ability to obtain credentials later. The cost of the permit is almost always lower than the cost of the violation, and the time to buy it is before you enter the state.

Can I use a permit service instead of filing myself?

Yes, and many carriers do, especially for oversize permits that require route surveys or for states with complex filing portals. A permit service can save time, but it does not transfer responsibility: you remain responsible for holding the credential, for renewals, and for quarterly returns. Confirm in writing which filings the service handles, which it does not, and who files your mileage and fuel-tax returns.

Note: This guide reflects rules, fees and portals as they stood at the time of writing and does not replace official state guidance. State requirements, tax rates and filing processes change, so verify the current details with the state agency before you file, run or quote a job. Errors and omissions excepted (E&OE).

Related Guides

• Form 2290 (HVUT) Hub: Due Dates, Pro-Rated Amounts, Penalties