San Francisco Mayor Daniel Lurie said the city’s fentanyl crisis will be addressed quickly if a new ordinance he submitted gets approved.

The action clears a path for the Department of Transportation and other federal agencies to begin fentanyl testing for federally regulated occupations like truck drivers.

A new study from researchers at UC San Francisco has found that a treatment approach designed to help people addicted to fentanyl, using low doses of buprenorphine, is not working as expected. The ...