The Department is initiating rulemaking to establish Total Maximum Daily Loads (TMDLs) for waters in the Apalachicola River, Chipola River, Kissimmee River, Alafia River, Hillsborough River, Manatee River, Little Manatee River, and Charlotte Harbor basins. Pursuant to Section 403.067(6), F.S., TMDLs must be adopted by the Secretary of the Department by rule. Chapter 62-304, F.A.C., was established as the rule chapter within which rules adopting TMDLs shall reside. Establishment of TMDLs is proceeding for waters within the above basins for which the verified list of impaired waters previously were adopted by Secretarial Order. TMDL calculations and allocations for each waterbody or waterbody segment will be adopted by rule, by the Secretary of the Department, pursuant to Sections 120.536(1), 120.54, and 403.805, F.S. These rules have been given individual OGC case numbers: 09-0719 for 62-304.310, 09-2871 for 62-304.315, 09-0785 for 62-304.515, 09-0722 for 62-304.605, 09-0720 for 62-304.610, 09-0717 for 62-304.615, 09-2870 for 62-304.620 and 09-0716 for 62-304.805.