The Department proposes to amend Chapter 62-303, F.A.C., to update the listing methodology for assessment of the revised DO criteria used to determine waterbody impairments and implement a variety of other miscellaneous updates identified during the Triennial Review of Florida’s water quality standards. OTHER RULES INCORPORATING THIS RULE: Chapter 62-303, F.A.C., is referenced by the following rules: 62-40.210, 62-40.430, 62-40.540, 62-302.530, 62-302.531, 62-302.800, 62-303.100, 62-303.150, 62-303.200, 62-303.300, 62-303.310, 62-303.320, 62-303.330, 62-303.350, 62-303.351, 62-303.352, 62-303.353, 62-303.354, 62-303.360, 62-303.370, 62-303.380, 62-303.390, 62-303.400, 62-303.410, 62-303.420, 62-303.430, 62-303.450, 62-303.460, 62-303.470, 62-303.480, 62-303.500, 62-303.600, 62-303.700, 62-303.710, 62-303.720, 62-303.810, 62-304.100, 62-305.200, 62-672.700, F.A.C. Rule 62-303.300 is referenced by the following rule: 62-303.300, F.A.C. Rule 62-303.320 is referenced by the following rules: 62-303.310, 62-303.320, 62-303.330, 62-303.350, 62-303.360, 62-303.370, 62-303.380, 62-303.420, 62-303.460, 62-303.470, 62-303.480, and 62-303.720, F.A.C. Rule 62-303.353 is referenced by the following rules: 62-303.353 and 62-303.390, F.A.C. Rule 62-303.360 is referenced by the following rules: 62-303.360, 62-303.460, and 62-303.720, F.A.C. Rule 62-303.370 is referenced by the following rules: 62-303.370, F.A.C. Rule 62-303.380 is referenced by the following rules: 62-303.480 and 62-303.720, F.A.C. Rule 62-303.420 is referenced by the following rules: 62-303.390, 62-303.400, 62-303.410, 62-303.420, 62-303.460, 62-303.470, 62-303.480, and 62-303.720, F.A.C. Rule 62-303.450 is referenced by the following rules: 62-303.450 and 62-303.720, F.A.C. Rule 62-303.460 is referenced by the following rules: 62-303.406, 62-303.470, 62-303.480, and 62-303.720, F.A.C. Rule 62-303.470 is referenced by the following rules: 62-303.470 and 62-303.720, F.A.C. Rule 62-303.480 is referenced by the following rules: 62-303.480 and 62-303.720, F.A.C. Rule 62-303.500 is referenced by the following rule: 62-303.500, F.A.C. Rule 62-303.720 is referenced by the following rule: 62-303.720, F.A.C. EFFECT ON THOSE OTHER RULES: The proposed amendments refine the methodology for assessing the revised DO criteria in surface waters used to determine water body impairment and implement a variety of miscellaneous updates identified during the Triennial Review of Florida’s water quality standards. These amendments are not expected to have a significant effect on other rules.