; and (ii) may make such recommendations as the Commission considers appropriate. (B) Postal service response If the Commission provides recommendations regarding a plan or report to the Postal Service under subparagraph (A)(ii), the Postal Service shall— (i) consider the recommendations; and (ii) not later than 90 days after the date on which the Postal Service receives the recommendations, submit a response to the Commission explaining the bases for any decision to accept or reject a recommendation. (4) Postal service implementation of plan After developing a plan under paragraph (1)(A), the Postal Service shall— (A) implement the plan; and (B) in each report provided under section 3652, discuss— (i) the implementation of the plan; (ii) the extent to which the Postal Service is improving performance to meet the performance targets; and (iii) if the performance targets subject to the plan are still not being met, whether— (I) the plan remains sufficient to achieve compliance within a reasonably practicable period of time, and is therefore being maintained; (II) the plan is being revised; or (III) the Postal Service has determined to make adjustments described in paragraph (1)(B) rather than continue with the plan. (5) Commission review of implementation (A) In general In making the determination required under section 3653, the Commission shall— (i) review the implementation of each plan developed under paragraph (1)(A); and (ii) make such recommendations as the Commission considers appropriate. (B) Consideration The Postal Service shall consider any recommendations under subparagraph (A)(ii) in the same manner as provided under paragraph (3). (h) Periodic review of service standards The Commission shall periodically— (1) review the appropriateness of the service standards