In an effort to help people replace plastic water bottles with reusable ones, Board of Supervisors President David Chiu introduced legislation Tuesday that would require new and renovated buildings to include bottle-filling stations in addition to conventional drinking fountains.

Chiu said his legislation, supported by the San Francisco Public Utilities Commission and the Department of the Environment, would “help enhance the health of our city while reducing plastic waste.”

The proposal builds on existing efforts to reduce waste and promote healthier lifestyles. In 2007, then-Mayor Gavin Newsom issued a directive to ban city departments from buying bottled water. The City also promotes a soda-free summer.

If approved by the Board of Supervisors, the requirement would take effect next year.