The City's tough gun-control laws became tougher Tuesday with the Board of Supervisors' passage of a ban on high-capacity ammunition magazines that contain more than 10 bullets.
It's already illegal in California to buy, sell or carry high-capacity magazines under a law that took effect in 2000. But that ban does not apply to magazines bought before the law went into effect.
Anyone in possession of a high-capacity magazine now has 90 days to surrender it to police or be guilty of a misdemeanor, though the law does not apply to members of the military or law enforcement. There are also exceptions for museums and ammo magazines "used as props" in television or movies, under legislation authored by Supervisor Malia Cohen.
Cohen's ban on large magazines is part of a wave of stricter gun-control laws passed in the wake of the 2012 massacre in Newtown, Conn. Firearms with high-capacity magazines have been used in multiple high-profile mass shootings in America.