SAN FRANCISCO (AP) — A San Francisco supervisor proposed legislation Tuesday requiring smartphones and other mobile devices sold in the city to be equipped with a “kill switch” to render them inoperable if they’re lost or stolen.

Supervisor London Breed’s local proposal comes two days before the California state Senate is set to reconsider a bill that would require the technology for all mobile phones sold in California. Her ordinance will be similar to proposed legislation sponsored by state Sen. Mark Leno, D-San Francisco, that fell two votes short of passing two weeks ago.