39 CFR 3030.121: Postal Service rate adjustment filing.

(a) In every instance in which the Postal Service determines to exercise its statutory authority to adjust rates for a class of mail, the Postal Service shall comply with the requirements specified in paragraphs (b) through (d) of this section.

(b) The Postal Service shall take into consideration how the planned rate adjustments are in accordance with the provisions of 39 U.S.C. chapter 36.

(c) The Postal Service shall provide public notice of its planned rate adjustments in a manner reasonably designed to inform the mailing community and the general public that it intends to adjust rates no later than 90 days prior to the planned implementation date of the rate adjustments.

(d) The Postal Service shall file a request to review its notice of rate adjustment with the Commission no later than 90 days prior to the planned implementation date of the rate adjustment.