Interoperability
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Interoperability

Toll roads in Texas

The Central United States Interoperability Partners (CUSIOP) allow drivers to use toll roads in Texas, Kansas, Oklahoma, Colorado and most toll roads in Florida with a single toll account. Drivers must have an active toll tag issued by the Texas Department of Transportation (TxTag), Harris County Toll Road Authority (EZ TAG), North Texas Tollway Authority (TollTag), Kansas Turnpike Authority (KTAG), Oklahoma Turnpike Authority (PIKEPASS), Colorado E-470 Public Highway Authority (ExpressToll), or Florida Department of Transportation (SunPass) installed in their vehicle.

With interoperability, drivers can enjoy the convenience of toll roads when traveling out of state without worrying about having to buy another toll tag or getting a fine for using a toll road without paying.

CUSIOP partner agencies

Austin area tolling agencies

Dallas-Fort Worth area tolling agencies

Houston area tolling agencies

Rio Grande Valley area tolling agencies

Managed lanes including HOV lanes and toll roads map

Map of toll roads and HOV lanes, including details such as toll names, IDs, operators, and mileage.

View map

FAQs

No. TxTag cannot be used for parking. The Central US program only allows TxTag customers to use their tag to pay for travel on toll roads.

You should not have more than one tag on your vehicle to avoid being charged twice for your tolls. Choose which toll account you would like to keep, remove the other sticker from your windshield, and close that account.

Toll agencies throughout the country continue to work together in an effort for all systems to be compatible. On July 6, 2012, the federal Moving Ahead for Progress in the 21st Century Act (MAP-21) was signed into law. Under MAP-21, state tolling agencies with roadways receiving federal funds are required to make their electronic toll payment systems compatible with each other. The toll authorities within Texas have been interoperable for nearly 15 years. The expansion to include Kansas,  Oklahoma, Colorado, and Florida, is one of the first steps to accomplish the goal of national toll interoperability.