"All city departments have six months to conduct an audit of unused land - including empty lots, rooftops, windowsills and median strips - that could be turned into community gardens or farms that could benefit residents, either by working at them or purchasing the fresh produce. Food vendors that contract with the city must offer healthy and sustainable food. All vending machines on city property must also offer healthy options, and farmers' markets must begin accepting food stamps, although some already do."
He's hoping to use city rules to improve the health of San Franciscans, and also to serve as a model for the rest of the country.
Thanks to The Infrastructurist