The Department is amending Chapter 62-625, F.A.C., to incorporate changes that EPA made to 40 CFR Part 403 to streamline procedures for approval and implementation of the pretreatment program. The amendments to Chapter 62-625, F.A.C., are as follows: (1) allow Control Authorities to authorize an industrial user (IU) subject to categorical Pretreatment Standards to reduce sampling of a pollutant if the IU demonstrates that a given pollutant is neither present nor expected to be present in the discharge; (2) allow Control Authorities to authorize the use of equivalent concentration limits in lieu of mass limits for Categorical Industrial Users (CIUs) in certain industrial categories; (3) allow Control Authorities to issue general control mechanisms to groups of Significant Industrial Users (SIUs) that are substantially similar; (4) allow Control Authorities to reduce oversight of certain CIUs based on percentage of contribution to the wastewater facility; (5) allow Control Authorities to reduce oversight of certain Industrial Users that may be reclassified as Non-Significant Categorical Industrial Users (NCSIUs); (6) provide greater flexibility in the use of certain sampling techniques; (7) allow, in certain circumstances, Control Authorities to express CIUs’ concentration-based categorical Pretreatment Standards as equivalent mass limits; (8) clarify that wastewater facilities may use Best Management Practices as alternatives to numeric limits that are developed to protect the wastewater treatment facility, water quality, and sewage sludge; (9) clarify the definition of significant noncompliance as it applies to violations of instantaneous and narrative requirements, and late reports; and (10) changes to the evaluation of local limits and evaluation of the need for a pretreatment program for certain discharges to UIC wells.