SAN FRANCISCO (CBS SF) – Parks in San Francisco will soon be off-limits overnight after the Board of Supervisors voted Tuesday to shut them down between midnight and 5 a.m.

Supervisor Scott Wiener has been pushing the proposal, which will shut 220 public facilites overnight. Weiner has said about 80 parks currently don’t allow sleeping but the lack of signage hampers enforcement by park security and police.

Vandalism was cited as major reason for the city to take action. The San Francisco Recreation and Parks Department claims the theft of copper and other metal objects costs the city about $1 million each year for repairs and replacement.

Homeless advocates argue that any curfew in the city’s park will lead to harassment and possible arrests. They said that between 50 and 200 people camp out in the parks, especially in the Golden Gate Park near Haight Street.

The start date for enforcement has not yet been released.

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