91 FR 33679
POSTAL REGULATORY COMMISSION
39 CFR part 3050
[Docket No. RM2026-6; Order No. 9592]
AGENCY:
Postal Regulatory Commission.
ACTION:
Notice of proposed rulemaking.
SUMMARY:
The Commission is acknowledging a recent Postal Service filing requesting the Commission initiate a rulemaking proceeding to consider changes to analytical principles relating to periodic reports. This document informs the public of the filing, invites public comment, and takes other administrative steps.
DATES:
Comments are due: July 27, 2026; Reply Comments are due: August 3, 2026.
ADDRESSES:
Submit comments electronically via the Commission's Filing Online system at https://www.prc.gov. Those who cannot submit comments 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:
I. Introduction
II. Proposal
III. Notice and Comment
IV. Ordering Paragraphs
On May 28, 2026, the Postal Service filed a petition pursuant to 39 CFR 3050.11 requesting that the Commission initiate a rulemaking proceeding to consider a proposed change to analytical principles relating to the Postal Service's periodic reports. 1 The Petition identifies the proposed analytical principles change filed in this docket as updates and refinements to the reporting of window service costs. Petition, Proposal at 3. Specifically, the Postal Service seeks to overhaul the existing methodology to correct identified mathematical and econometric errors and to reflect changes in window service volumes and operations. Id.
1 Petition of the United States Postal Service to Initiate a Proceeding to Change Analytical Principles, and Notice of Filing USPS-RM2026-6-NP1, May 28, 2026 (Petition). The proposed change is attached to the Petition (Proposal). The Petition was accompanied by a study supporting its Proposal. See Michael D. Bradley, Updating and Refining Window Service Costs, May 28, 2026.
Background. The Postal Service states that the existing methodology for reporting window service costs was established in Docket No. R90-1 and refined in Docket Nos. R97-1 and R2006-1. Id. The Postal Service notes that there have been significant changes in window service volume and operations since the established methodology was last updated. Id. The Postal Service also identifies errors in the established methodology that, when corrected, contradict existing “assumptions that both network time and waiting time were one hundred percent variable with visit time during the late 1980s.” Id. The Postal Service additionally identifies data limitations underpinning the established methodology that can be ameliorated by using modern data captured using its Retail Systems Software (RSS) point-of-sale system. Id. at 4.
Proposal. The Postal Service proposes correcting, updating, and/or refining four of the five variabilities that go into calculating volume variable window service costs. Id. at 5. Visit time variability is proposed to be updated using RSS data, the application of Stochastic Frontier Analysis (SFA) to account for non-item time, and a revised method for directly estimating the response in visits to changes in window service volumes. Id. at 5-9. Network variability is proposed to be updated by correcting a mistaken formula in the established methodology and making improvements to comport with current Commission standards. Id. at 9-10. Waiting time variability is proposed to be updated to adjust assumptions in the established methodology and to account for the decline in window service volume. Id. at 10-14. Non-acceptance variability is proposed to be updated to correct an implicit variability for non-acceptance costs of 100 percent. Id. at 14-15.
Impact. The proposed changes would decrease the affected variabilities, which would cause a corresponding decrease in volume variable window service costs. See id. at 15-17. The claimed impacts on window service costs are:
| Product | Established unit WS cost | Proposed unit WS cost | Unit WS cost change |
|---|---|---|---|
| First-Class Mail | $0.007 | $0.003 | −$0.004 |
| USPS Marketing Mail | 0.002 | 0.001 | −0.001 |
| Periodicals | 0.0014 | 0.0006 | −0.0008 |
| Package Services | 0.049 | 0.028 | −0.021 |
| Domestic Competitive Products | 0.096 | 0.049 | −0.047 |
| Certified Mail | 0.652 | 0.431 | −0.221 |
| Money Orders | 2.032 | 0.978 | −1.053 |
Id. at 17. The claimed impacts on unit costs range from −0.3 percent to −.0 percent for First-Class Mail; −0.1 percent to −1.4 percent for USPS Marketing Mail; −0.1 percent to −0.7 percent for Periodicals; −0.1 percent to −2.5 percent for Package Services; −12.1 percent to −37.1 percent for Ancillary Services, and average −1.4 percent for domestic Competitive products. 2
2 Id. at 20. For Market Dominant products, a full breakdown by product of the claimed impact on unit costs can be found in Table 2 in the Proposal. See id.
Pursuant to 39 CFR 3050.11(d)(1), the Commission establishes Docket No. RM2026-6 to consider the matters raised by the Petition. More information on the Petition may be accessed via the Commission's website at https://www.prc.gov. Interested persons may submit comments on the Petition and the Proposal no later than July 27, 2026. Reply comments are due August 3, 2026. Pursuant to 39 U.S.C. 505, Madison Lichtenstein is designated as an officer of the Commission (Public Representative) to represent the interests of the general public in this proceeding. The Public Representative does not represent any individual person, entity or particular point of view, and, when Commission attorneys are appointed, no attorney-client relationship is established.
It is ordered:
1. The Commission establishes Docket No. RM2026-6 to consider the matters raised by the Petition of the United States Postal Service to Initiate a Proceeding to Change Analytical Principles, and Notice of Filing USPS-RM2026-6-NP-1, filed May 28, 2026.
2. Pursuant to 39 U.S.C. 505, the Commission appoints Madison Lichtenstein to serve as an officer of the Commission (Public Representative) to represent the interests of the general public in this docket.
3. Comments by interested persons in this proceeding are due no later than July 27, 2026.
4. Reply Comments are due August 3, 2026.
5. This Order, or abstract thereof, shall be published in the Federal Register .
By the Commission.
Mallory S. Richards,
Attorney-Advisor.
[FR Doc. 2026-11157 Filed 6-3-26; 8:45 am]
BILLING CODE 7710-FW-P