Ordinance amending the San Francisco Environment Code by adding Chapter 19, Sections 1901 through 1912, entitled "Mandatory Recycling and Composting Ordinance," amending the San Francisco Public Works Code by amending Section 173, and amending the San Francisco Health Code by amending Sections 291, 291.1, 291.2, 291.4, 291.7, 291.11, 291.12, 291.15, 291.17, and 293.1, and by repealing current Sections 291.9 and 291.16 and adding a new Section 291.16, all to: (1) require all persons located in Sa