Regulations last checked for updates: Sep 13, 2026

Title 39 - Postal Service last revised: Jun 12, 2026
§ 3055.1 - Annual Reporting of service performance achievements.

For each Market Dominant product specified in the Mail Classification Schedule in part 3040, appendix A to subpart A of part 3040 of this chapter (and for each competitive nonpostal service product specified in the Mail Classification Schedule in part 3040, appendix B to subpart A of part 3040 of this chapter), the Postal Service shall file a report as part of the section 3652 report addressing service performance achievements for the preceding fiscal year.

[88 FR 10038, Feb. 16, 2023]
§ 3055.2 - Contents of the annual report of service performance achievements.

(a) The items in paragraphs (b) through (n) of this section shall be included in the annual report of service performance achievements.

(b) The class or group-specific reporting requirements specified in §§ 3055.20 through 3055.25.

(c) The applicable service standard(s) for each product. If there has been a change to a service standard(s) since the previous report, a description of and reason for the change shall be provided. If there have been no changes to service standard(s) since the previous report, a certification stating this fact shall be provided.

(d) The applicable service goal(s) for each product.

(e) A description of the measurement system for each product, including:

(1) A description of what is being measured;

(2) A description of the system used to obtain each measurement;

(3) A description of the methodology used to develop reported data from measured data;

(4) A description of any changes to the measurement system or data reporting methodology implemented within the reported fiscal year; and

(5) Where proxies are used, a description of and justification for the use of each proxy.

(f) A description of the statistical validity and reliability of the results for each measured product.

(g) A description of how the sampled data represents the national geographic mail characteristics or behavior of the product.

(h) For each product that does not meet a service standard, an explanation of why the service standard is not met, and a plan describing the steps that have or will be taken to ensure that the product meets or exceeds the service standard in the future.

(i) The identification of each product, or component of a product, granted an exception from reporting pursuant to § 3055.3, and a certification that the rationale for originally granting the exception remains valid.

(j) Documentation showing how data reported at a given level of aggregation were derived from data reported at greater levels of disaggregation. Such documentation shall be in electronic format with all data links preserved. It shall show all formulas used, including volumes and other weighting factors. Any graphical representation of data provided shall also be accompanied by the underlying data presented in spreadsheet form.

(k) For each product, documentation showing how the reports required by subpart A of this part were derived from the reports required by subpart B of this part. Such documentation shall be in electronic format with all data links preserved. It shall show all formulas used, including volumes and other weighting factors.

(l) For each Market Dominant product, the average time in which the product was delivered, measured by actual delivery days, during the previous fiscal year, provided at the District, Postal Administrative Area, and National levels. “Actual delivery days” shall include all days in which Market Dominant products are eligible for delivery, excluding Sundays and holidays. The report shall include the following information on dispersion around the average:

(1) The percent of mailpieces delivered within +1 day of the applicable service standard;

(2) The percent of mailpieces delivered within +2 days of the applicable service standard; and

(3) The percent of mailpieces delivered within +3 days of the applicable service standard.

(m) A description of each Site-Specific Operating Plan, including operation completion time performance (as a percentage rounded to one decimal place) for each Site-Specific Operating Plan measurement category during the previous fiscal year. Such information shall be at the National level and disaggregated by Division and Region.

(n) A description of the total mail volumes measured and excluded from measurement. Such description shall include:

(1) For each class of Market Dominant products (except Special Services), a report of the reasons that mailpieces were excluded from measurement during the previous fiscal year. The report shall include:

(i) The exclusion reason;

(ii) The exclusion description;

(iii) The number of mailpieces excluded from measurement, which is the sum of all mailpieces excluded from measurement for the individual exclusion reason; and

(iv) The exclusion reason as a percent of total mailpieces excluded from measurement, which is the number of mailpieces excluded from measurement (i.e., provided in paragraph (n)(1)(iii) of this section) divided by the sum of all mailpieces excluded from measurement across all exclusion reason categories (i.e., the sum of all values provided in paragraph (n)(1)(iii) of this section).

(2) The report described in paragraph (n)(1) of this section shall follow the format as shown below:

Table 1 to Paragraph (n)(2)—Exclusion Reasons Report for Fiscal Year

Exclusion reason Exclusion description Number of mailpieces excluded from measurement Exclusion reason as a percent of total exclusions

(3) For each class of Market Dominant products and for each Market Dominant product (except Special Services), a description of the mail volumes measured and un-measured during the previous fiscal year. The description shall explain in detail any notations regarding the Postal Service's inability to collect any data. Corresponding data shall also be provided for the same period last year (SPLY).

(4) The report described in paragraph (n)(3) of this section shall follow the format as shown below:

Table 2 to Paragraph (n)(4)—Total Mail Measured/Unmeasured Volumes Report for Fiscal Year

Class/product ⁁⁁ ⁁⁁ ⁁⁁
Prior FY SPLY Prior FY SPLY Prior FY SPLY
Total Number of Pieces (RPW-ODIS)
Total Number of Pieces in Measurement
Total Number of Pieces Eligible for Full-Service IMb
Total Number of Full-Service IMb Pieces Included in Measurement
Total Number of Full-Service IMb Pieces Excluded from Measurement
Total Number of Pieces Not in Measurement
% of Pieces in Measurement Compared to Total Pieces
% of Pieces Not in Measurement Compared to Total Pieces
% of Full-Service IMb Pieces in Measurement Compared to Total IMb Full-Service Pieces
% of Full-Service IMb Pieces Not in Measurement Compared to Total IMb Full-Service Pieces

(5) Descriptions of the current methodologies used to verify the accuracy, reliability, and representativeness of service performance data for each service performance measurement system.

[75 FR 38742, July 6, 2010, as amended at 85 FR 81141, Dec. 15, 2020; 88 FR 10038, Feb. 16, 2023]
§ 3055.3 - Reporting exceptions.

(a) The Postal Service may petition the Commission to request that a product, or component of a product, be excluded from reporting, provided the Postal Service demonstrates that:

(1) The cost of implementing a measurement system would be prohibitive in relation to the revenue generated by the product, or component of a product;

(2) The product, or component of a product, defies meaningful measurement; or

(3) The product, or component of a product, is in the form of a negotiated service agreement with substantially all components of the agreement included in the measurement of other products.

(b) The Postal Service shall identify each product or component of a product granted an exception in each report required under subparts A or B of this part, and certify that the rationale for originally granting the exception remains valid.

§ 3055.4 - Internal service performance measurement systems.

(a) Service performance measurements obtained from internal service performance measurement systems or hybrid service performance measurement systems (which are defined as systems that rely on both an internal and an external measurement component) shall not be used to comply with any reporting requirement under subparts A or B of this part without prior Commission approval.

(b) The Postal Service shall file notice with the Commission describing any proposed changes to internal or hybrid service performance measurement systems (including proposed changes to any associated reporting methodologies or the use of proxies). In proposing such changes, the Postal Service must demonstrate, by a preponderance of the evidence, that internal or hybrid service performance measurement systems will be capable of producing accurate, reliable, representative, and useful service performance data and results. The Commission may summarily dismiss (without prejudice to refiling) any proposal that fails to include this information. The Postal Service's proposal must specify any planned implementation date(s), any requested decision date(s), and the reasons therefor. Preponderance of the evidence means proof by information that, compared with that opposing it, leads to the conclusion that the fact at issue is more probably true than not.

(c) In the absence of a determination of good cause for an extension, the Commission shall issue an order on a notice filed pursuant to paragraph (b) of this section not later than 90 days following the filing of the Postal Service's notice. If the Commission determines that an order cannot reasonably be issued within 90 days, then the Commission shall issue an order explaining why and providing an expected date for completion of Commission review.

(d) Changes to internal or hybrid service performance measurement systems proposed pursuant to paragraph (b) of this section may not be implemented without prior Commission approval.

(e) The Commission may initiate a proceeding at any time to consider whether internal or hybrid service performance measurement systems are producing accurate, reliable, representative, and useful service performance data and results. Any interested person, including a public representative, may submit a petition to the Commission to initiate such a proceeding.

[91 FR 26923, May 13, 2026]
§ 3055.5 - Changes to external service performance measurement systems, service standards, service goals, or reporting methodologies.

(a) The Postal Service shall file notice with the Commission describing all changes to external service performance measurement systems and service goals (including performance targets), 30 days prior to planned implementation. The Postal Service shall also file notice with the Commission describing all changes to reporting methodologies, including the use of proxies (other than reporting methodologies or the use of proxies associated with internal or hybrid service performance measurement systems as described by § 3055.4 of this part), 30 days prior to planned implementation. The Commission may initiate a proceeding at any time to consider such changes if it appears that the changes might have a material impact on the accuracy, reliability, or utility of the reported measurement, or if the changes might have a material impact on the characteristics of the underlying product.

(b) No later than 7 days before planned implementation of any change to service standard delivery day ranges or origin/destination ZIP Code pairs that affect the number of days to delivery, the Postal Service shall file notice with the Commission describing the exact nature and scope of implementation. Each notice shall use plain language to list all locations affected by the change in service standards (at the level of granularity of the service standard), the categories of affected market dominant products, the current service standard, the planned service standard, and the date of the planned change. If the change in service standards is associated with a Change in the Nature of Postal Services docket pursuant to 39 U.S.C. 3661 and part 3020 of this chapter, then each notice shall be filed in the applicable Change in the Nature of Postal Services docket. Otherwise, each notice should be filed in the most recent Annual Compliance Report docket.

[91 FR 26923, May 13, 2026]
§ 3055.6 - Addition of new market dominant products or changes to existing market dominant products.

Whenever the Postal Service proposes the addition of a new market dominant product or a change to an existing market dominant product, it also shall propose new or revised (as necessary) service performance measurement systems, service standards, service goals (including performance targets), data reporting elements, and data reporting methodologies.

[91 FR 26924, May 13, 2026]
§ 3055.7 - Reasonable performance targets.

(a) Pursuant to 39 U.S.C. 3692(a)(1), the Postal Service shall establish reasonable performance targets for each market dominant product for each fiscal year and provide such targets to the Commission not later than 60 days after the beginning of the fiscal year in which they will apply. In setting reasonable performance targets, the Postal Service must consider and balance:

(1) the need for each target to establish a clear path toward improving performance and enabling the provision of high-quality service; and

(2) the need for each target to be realistically attainable considering the Postal Service's network, workforce, transportation capacity, and financial resources, and actual service standards in effect.

(b) The Postal Service's filing made pursuant to paragraph (a) of this section shall contain sufficient information about the criteria used to select the targets for the Commission to be able to determine (based on the contents of the Postal Service's filing alone), by a preponderance of the evidence, that the targets set by the Postal Service are reasonable. Preponderance of the evidence means proof by information that, compared with that opposing it, leads to the conclusion that the fact at issue is more probably true than not.

(c) The Commission will use each reasonable target set by the Postal Service to evaluate compliance for each market dominant product for a given fiscal year pursuant to 39 U.S.C. 3653(b)(2).

[91 FR 26924, May 13, 2026]
§ 3055.20 - First-Class Mail.

(a) For each of the Single-Piece Letters/Postcards, Presorted Letters/Postcards, and Flats products within the First-Class Mail class, report the on-time service performance (as a percentage rounded to one decimal place), disaggregated by mail subject to the overnight, 2-day, 3-day, 4-day, and 5-day service standards, as well as in the aggregate for the 3-to-5-day service standards.

(b) For each of the Outbound Single-Piece First-Class Mail International and Inbound Letter Post products within the First-Class Mail class, report the on-time service performance (as a percentage rounded to one decimal place), disaggregated by mail subject to the 2-day, 3-day, 4-day, and 5-day service standards, as well as in the aggregate for the 3-to-5-day service standards and in the aggregate for all service standards combined.

(c) For each product that does not meet its service goal during the reporting period, report the point impact data for the top ten root causes of on-time service performance failures, at the Postal Administrative Area and National levels, during the previous fiscal year. “Point impact data” means the number of percentage points by which on-time performance decreased due to a specific root cause of failure. Identification and a description of all potential root causes of failure assigned during the previous fiscal year and any changes to the Postal Service's methodology for calculating point impact data shall be included.

[88 FR 10039, Feb. 16, 2023]
§ 3055.21 - USPS Marketing Mail.

(a) For each product within the USPS Marketing Mail class, report the on-time service performance (as a percentage rounded to one decimal place).

(b) For each product within the USPS Marketing Mail class that does not meet its service goal during the reporting period, report the point impact data for the top ten root causes of on-time service performance failures, at the National level, during the previous fiscal year. “Point impact data” means the number of percentage points by which on-time performance decreased due to a specific root cause of failure. Identification and a description of all potential root causes of failure assigned during the previous fiscal year and any changes to the Postal Service's methodology for calculating point impact data shall be included. This requirement shall not apply to USPS Marketing Mail Every Door Direct Mail or USPS Marketing Mail Destination Delivery Unit Entry Saturation Flats.

[88 FR 10039, Feb. 16, 2023]
§ 3055.22 - Periodicals.

(a) For each product within the Periodicals class, report the on-time service performance (as a percentage rounded to one decimal place).

(b) For each product within the Periodicals class that does not meet its service goal during the reporting period, report the point impact data for the top ten root causes of on-time service performance failures, at the National level, during the previous fiscal year. “Point impact data” means the number of percentage points by which on-time performance decreased due to a specific root cause of failure. Identification and a description of all potential root causes of failure assigned during the previous fiscal year and any changes to the Postal Service's methodology for calculating point impact data shall be included.

[88 FR 10040, Feb. 16, 2023]
§ 3055.23 - Package Services.

(a) For each product within the Package Services class, report the on-time service performance (as a percentage rounded to one decimal place).

(b) For each product within the Package Services class that does not meet its service goal during the reporting period, report the point impact data for the top ten root causes of on-time service performance failures, at the National level, during the previous fiscal year. “Point impact data” means the number of percentage points by which on-time performance decreased due to a specific root cause of failure. Identification and a description of all potential root causes of failure assigned during the previous fiscal year and any changes to the Postal Service's methodology for calculating point impact data shall be included.

[88 FR 10040, Feb. 16, 2023]
§ 3055.24 - Special Services.

For each product within the Special Services group, report the percentage of time (rounded to one decimal place) that each product meets or exceeds its service standard.

§ 3055.25 - Nonpostal Products.

(a) For each product that is a nonpostal service authorized pursuant to 39 U.S.C. chapter 37, the Postal Service shall report the measure of the quality of service.

(b) If practicable, quantitative measurement (such as on-time service performance) along with identification of the underling metric(s) shall be provided. If quantitative measurement is not practicable, the Postal Service shall so state, explain why it is not practicable, and provide qualitative analysis.

(c) For the Postal Service's program to provide property and nonpostal service to other Government agencies under 39 U.S.C. 3704,the.

(d) The effective date of this section is October 1, 2023.

[88 FR 10040, Feb. 16, 2023]
source: 75 FR 38742, July 6, 2010, unless otherwise noted.
cite as: 39 CFR 3055.4