; and (2) submit to Congress and the Postal Service a report on the review conducted under paragraph (1). . (2) Technical and conforming amendment The table of sections for chapter 36 of title 39, United States Code, is amended by striking the item relating to section 3691 and inserting the following: 3691. Modern service standards, performance targets, and performance measurements. . (b) Review of nationwide service standard changes Section 3661 of title 39, United States Code, as amended by section 205 of this Act, is amended by adding at the end the following: (e) Changes relating to market-dominant products (1) Inspector General review Upon a request by the Postal Service for an advisory opinion from the Commission under subsection (b) relating to a nationwide or substantially nationwide change in service standards for the delivery of market-dominant products, including when the Postal Service establishes new performance targets under section 3691(e), the Inspector General shall, not later than 90 days after the submission of the request— (A) conduct a review of the proposal to determine whether— (i) the Postal Service formulated the proposal based on accurate data; (ii) the Postal Service followed appropriate policies and procedures of the Postal Service in formulating the proposal; and (iii) the proposal prioritizes the needs of the postal customer; and (B) submit a report on the review conducted under subparagraph (A) to— (i) the Postal Service; (ii) the Commission; (iii) the Committee on Homeland Security and Governmental Affairs of the Senate