San Francisco will begin enforcing sidewalk parking in Sunnyside.

A vehicle parked on any portion  of a sidewalk can be cited for a sidewalk violation. A sidewalk citation  can be given even if the pedestrian travel path is partly clear or if the  vehicle is parked across a driveway. Sidewalks are the area between the curb  and the building property line. Motorcycles are not exempt from sidewalk  parking regulations. Bicycles can be parked on the sidewalk but their owners  must ensure that the pedestrian path is safe and clear.

For more information, visit http://www.sfmta.com/cms/penf/indxpkenf.htm