a. The commissioner shall complete follow-up studies to the studies performed in two thousand five regarding the characteristics of the city's residential and institutional waste streams for department-managed solid waste on or before January thirty-first, two thousand twelve, and on or before January thirty-first, two thousand eighteen. The results of each such study and an analysis of those results shall be submitted to the council and the mayor within sixty days of their completion.
b. On or before January thirty-first, two thousand twenty-four, the commissioner shall complete a detailed, comprehensive citywide multi-season study of the city's residential and institutional waste streams for the purpose of determining the composition of the waste stream characterized by type of material. The results of such study and an analysis of those results shall be submitted to the council and the mayor within sixty days of its completion.
Editor's note: For related unconsolidated provisions, see Appendix A at L.L. 2010/040.