Drivers for the ride-sharing company Lyft, which can be recognized by the pink mustaches attached to the grill of the cars, are creating a legislation and regulation stir across the United States. Lyft is one of a few brands associated with the new market—dubbed transportation networking companies by the California Public Utilities Commission in 2013—but more commonly known as ride sharing. These companies hire local drivers and use a phone app to connect them with passengers in need of a ride. The concept is still relatively new, so as transportation networking companies spread to different cities, state and local governments are unsure if or how to regulate them. In 2013, California was the first state to define and allow the operation of ride-sharing companies. California Public Utilities Commission regulations prohibit their operation at airports, but enforcement is an issue.