Chapter 3 of the District’s Environmental Resource Permitting Manual Part B – Basis of Review (BOR) contains the environmental criteria used in evaluating an ERP application to determine whether conditions for permit issuance are met, including mitigation criteria for impacts to wetlands and other surface waters. Proposed revisions to Chapter 3 will accomplish the following: 1) clarify the current exemption from mitigation in subsection 3.2.2.2 for alterations to wholly owned ponds less than one acre and constructed in uplands and upland cut ditches; 2) eliminate the apparent preference for on-site mitigation vs. off-site in subsection 3.3.1.2; 3) create a new subsection 3.3.1.2.1 to explain requirements for demonstrating sufficient ownership or control of off-site mitigation areas, to provide reasonable assurance of mitigation success; 4) revise sections 3.3.2 – 3.3.2.2 to clarify when the Uniform Mitigation Assessment Method (UMAM) supersedes ratio guidelines, when UMAM is applied and when it is not; 5) make several non-substantive technical corrections such as correcting rule references, improving sentence structure, etc. Rule 40D-4.091, F.A.C., is amended to incorporate by reference the revised BOR and effective date.