Irvine has become the third city in Orange County to enact a smoking ban in public places.

The ban covers sidewalks, streets, alleys and common areas of multi-unit residences, including play areas and pools.

The new ordinance extends smoking prohibitions that already were in place in parks, recreational facilities, most eating establishments and other public locations.

The only place smoking is allowed in Irvine is at a private residence or inside a vehicle.