SAN FRANCISCO — San Francisco may get one step closer Tuesday to adopting a “recovery first” drug strategy that prioritizes abstinence and long-term remission.

It’s the brainchild of Supervisor Matt Dorsey, a recovering meth addict, and if passed by the board of supervisors, the city’s legislative body, it is believed to be the first of its kind in the nation. The ordinance faces a critical vote in the first of two readings it needs before it can pass.