; and (iii) small businesses. (3) Explanation and comments The Commission shall explain in its final rule the nature of comments that it received, including those from the industry or consumer groups concerning the potential costs or benefits of the proposed rule or proposed rule change, and shall provide a response to those comments in its final rule, including an explanation of any changes that were made in response to those comments and the reasons that the Commission did not incorporate those industry group concerns related to the potential costs or benefits in the final rule. (4) Review of Existing Regulations Not later than 1 year after the date of enactment of the SEC Regulatory Accountability Act, and every 5 years thereafter, the Commission shall review its regulations to determine whether any such regulations are outmoded, ineffective, insufficient, or excessively burdensome, and shall modify, streamline, expand, or repeal them in accordance with such review. In reviewing any regulation (including, notwithstanding paragraph (6), a regulation issued in accordance with formal rulemaking provisions) that subjects issuers with a public float of $250,000,000 or less to the attestation and reporting requirements of section 404(b) of the Sarbanes-Oxley Act of 2002 ( 15 U.S.C. 7262(b) ), the Commission shall specifically take into account the large burden of such regulation when compared to the benefit of such regulation. (5) Post-adoption impact assessment (A) In general Whenever the Commission adopts or amends a regulation designated as a major rule within the meaning of section 804(2) of title 5, United States Code, it shall state, in its adopting release, the following: (i) The purposes and intended consequences of the regulation. (ii) Appropriate post-implementation quantitative and qualitative metrics to measure the economic impact of the regulation and to measure the extent to which the regulation has accomplished the stated purposes. (iii) The assessment plan that will be used, consistent with the