First-Class Mail.

§ 3055.45 First-Class Mail. (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: (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 (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. (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: (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 (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. [88 FR 10041, Feb. 16, 2023]