; and (B) whether the major rule has been rendered unnecessary, taking into consideration— (i) changes in the subject area affected by the major rule; (ii) whether the major rule overlaps, duplicates, or conflicts with other rules or, to the extent feasible, State and local government regulations; and (iii) other alternatives to the major rule or modification of the major rule that might achieve better results while imposing a smaller burden on society or at a lower cost, taking into consideration any cost already incurred. (2) Reopening of public docket Upon delivery of the report required in paragraph (1) the agency shall— (A) reopen the public docket for 60 days to receive additional comments; and (B) consider modifications or alternatives that reduce costs and increase benefits to regulated entities or individuals. (3) Rule of construction Nothing in this subsection may be construed to affect any other provision of law that requires an agency to conduct retrospective reviews of rules issued by the agency. . 104. Agency guidance; procedures to issue major guidance; presidential authority to issue guidelines for issuance of guidance (a) In general Chapter 5 of title 5, United States Code, is amended by inserting after section 553 the following new section: 553a. Agency guidance; procedures to issue major guidance; authority to issue guidelines for issuance of guidance (a) Before issuing any major guidance, or guidance that involves a novel legal or policy issue arising out of statutory mandates, an agency shall— (1) make and document a reasoned determination that— (A) assures that such guidance is understandable and complies with relevant statutory objectives and regulatory provisions (including any statutory deadlines for agency action); (B) summarizes the evidence and data on which the agency will base the guidance