TOPEKA, Kan. (AP) — The Kansas Turnpike Authority says it might not meet a federal deadline for allowing people to use the state's electronic transponders, known as K-Tag, on other states' toll roads. The federal government wants all state toll highways to be "inter-operable" by October 1. KTA spokeswoman Rachel Bell says the agency is working with other states and agencies but the federal legislation doesn't specify exactly how the systems are supposed to work together. And states have different types of automatic pay systems. Some were developed by private companies and serve several states, while others — such as K-Tag — are developed and owned by a specific state. The Lawrence Journal-World reports that K-Tag is linked with Oklahoma's system and the state is working with two systems used by commercial truckers.