{"data":{"id":"us/39-cfr-3055.45","jurisdiction":"us","citation":"39 CFR 3055.45","heading":"First-Class Mail.","body":"(a) Single-Piece Letters/Postcards, Presorted Letters/Postcards, and Flats. For each of the Single-Piece Letters/Postcards, Presorted Letters/Postcards, and Flats products within the First-Class Mail class, report the:\n(1) 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, provided at the District, Postal Administrative Area, and National levels; and\n(2) Service variance (as a percentage rounded to one decimal place) for mail delivered within +1 day, +2 days, and +3 days of its applicable service standard, 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, provided at the District, Postal Administrative Area, and National levels.\n(b) Outbound Single-Piece First-Class Mail International and Inbound Letter Post. For each of the Outbound Single-Piece First-Class Mail International and Inbound Letter Post products within the First-Class Mail class, report the:\n(1) 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, provided at the Postal Administrative Area and National levels; and\n(2) Service variance (as a percentage rounded to one decimal place) for mail delivered within +1 day, +2 days, and +3 days of its applicable service standard, 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 and in the aggregate for all service standards combined, provided at the Postal Administrative Area and National levels.","path":["Title 39—Postal Service","CHAPTER III—POSTAL REGULATORY COMMISSION","SUBCHAPTER F—PERIODIC REPORTING, ACCOUNTING PRACTICES, AND TAX RULES","PART 3055—SERVICE PERFORMANCE AND CUSTOMER SATISFACTION REPORTING","Subpart B—Periodic Reporting of Service Performance Achievements"],"source_url":"https://www.ecfr.gov/api/versioner/v1/full/2026-08-25/title-39.xml","current_through":"2026-08-25","vintage":"","retrieved_at":"2026-08-27T02:25:51Z","sha256":"0225810c90c319d6d9032c7279a852d8ac5be8f0193d7af434c979fdea97078a","source_id":"us-cfr","stale":true,"prev":"us/39-cfr-3055.32","next":"us/39-cfr-3055.50"},"notice":"GroundRules: Original legal text. Not legal advice."}