DENVER (AP) Colorado has become the first state whose legislature passed a law regulating companies like UberX and Lyft, which connect riders to drivers through cellphone apps.
Gov. John Hickenlooper signed the bill on Thursday.
California passed rules last year, but other states like Georgia and Arizona rejected legislation this year that would've implemented a regulatory framework for the fast-growing companies.
Taxi and limo companies have generally opposed such measures, saying the Web-based businesses are not regulated as strictly as traditional transportation companies.
The new law puts the companies under the oversight of the state's public utilities commission. It requires ridesharing companies to submit drivers to background checks, vehicle inspections, and provide proof of insurance.