A new state law aims to help the Kansas Turnpike collect unpaid tolls by allowing the state to block the vehicle registrations of offending motorists, starting in 2018.

Gov. Sam Brownback signed the measure into law Friday.

The bill arose from a proposal from the Kansas Turnpike Authority, which oversees the state’s only toll road and told lawmakers it is considering putting up gateless toll systems at three high-traffic exits. But if it does, it would need a way to ensure that tolls are collected.

The bill says that the Turnpike Authority will be allowed in 2018 to ask the state to block the vehicle registrations of motorists who have more than $100 in unpaid turnpike tolls.

Kansas motorists must register their vehicles annually to drive them legally.