Indian officials have banned half of all private vehicles from operating in the capital, New Delhi, because of poor air quality. An order announced Monday creates a system based on vehicle license numbers to restrict personal car use on New Delhi’s roads. Vehicles with odd number license plates are permitted to operate only on odd numbered dates, such as five, seven and nine. Those with even numbers can be driven in the city only on even dates, such as six, eight and 10. Officials estimate the new rule will keep about 1.2 million registered vehicles off the roads each day. More than 600 police teams were deployed around the capital with the power to hand out $60 fines to drivers failing to obey the law. Officials said the measure will remain in place until at least November 15. The ban does not affect New Delhi's seven million motorcycles and scooters or public transportation vehicles.