Market Dominant Price Adjustment

Document Headings Document headings vary by document type but may contain the following: the agency or agencies that issued and signed a document the number of the CFR title and the number of each part the document amends, proposes to amend, or is directly related to the agency docket number / agency internal file number the RIN which identifies each regulatory action listed in the Unified Agenda of Federal Regulatory and Deregulatory Actions See the Document Drafting Handbook for more details. Postal Regulatory Commission [Docket No. R2027-1; Order No. 9650] AGENCY: Postal Regulatory Commission. ACTION: Notice. SUMMARY: The Commission is recognizing a recently filed Postal Service motion seeking a partial waiver of rules regarding the applicability, data sources, and calculation of density rate authority affecting market dominant products and services. This notice informs the public of the filing, invites public responses, and takes other administrative steps. DATES: Responses are due: July 29, 2026. ADDRESSES: Submit responses electronically via the Commission's Filing Online system at https://www.prc.gov . Those who cannot submit responses electronically should contact the person identified in the FOR FURTHER INFORMATION CONTACT section by telephone for advice on filing alternatives. FOR FURTHER INFORMATION CONTACT: David A. Trissell, General Counsel, at 202-789-6820. SUPPLEMENTARY INFORMATION: Table of Contents I. Introduction II. Overview of the Postal Service's Motion III. Initial Administrative Actions IV. Ordering Paragraphs I. Introduction On July 16, 2026, pursuant to 39 CFR 3010.161 , the Postal Service filed a motion for partial waiver of 39 CFR 3030.160 , .161, and .162 regarding the applicability, data sources, and calculation of density rate authority. [ 1 ] The Postal Service requests a partial waiver of the Commission's density rate authority rules to allow it to use a modified calculation of the available density rate authority based on a mix of ac…