What do green curbs mean in San Francisco?
Green curbs mean areas zoned for short term parking, generally less than 10 minutes. Green zones are usually enforced 9 a.m. until 6 p.m., Monday through Saturday.
Vehicles displaying valid disabled placards or plates are exempt from the time limits for green zones.
Green zones are often used for areas where errands are short such as dry cleaners, florists, small convenience stores, postal centers and hardware stores.