If the bill were to pass, an Uber spokesperson said, it would put “the future of Uber in Colorado in jeopardy.”

Uber claimed it would have “no choice” but to cease operations in Colorado should the state pass a new bill to bolster passenger safety. Under the bill, HB25-1291, rideshare companies operating in Colorado would be required to perform regular background checks on drivers,

The California-based company says it could not comply with House Bill 1291 and the measure would pose too big a legal risk. It has never pulled out of a state before.