The city council of Oakland, Calif. has voted to ban the municipal use of facial recognition technology within its borders.

That makes Oakland the third U.S. city to ban the high-tech surveillance tool and the second to do so in the Bay Area, according to CNET. San Francisco, Calif. banned facial recognition in May and Somerville, Mass. did so in June.

Oakland City Council President Rebecca Kaplan, who prepared a report on the proposed ban, cited limitations of the technology, the lack of standards around its implementation, and its potential use in the persecution of minorities, according to CNET.

A final vote with the Oakland City Council is scheduled for September 17.