Often, this is through a "medallion" system. A certain number of medallions are issued each year, giving the holder permission to operate a taxi service in the area.

Apps GetTaxi’s iOS app now lets you view taxis in your area and give your location by nearest landmark April 23, 2012 - 7:00 pm ...

How Much Does It Cost to Start a Taxi Business?. As with most other types of businesses, the exact costs of starting a taxi service will largely depend on the area where your business is located ...