FAQs
10/23/2025
First-Class Mail and Marketing Mail Growth Incentives FAQs

On September 27, 2023, the Postal Regulatory Commission (PRC) approved the Postal Service request to make Mail Classification Schedule (MCS) changes to establish two distinct Mail growth incentives — a First Class Mail Growth Incentive and a Marketing Mail Growth Incentive. The incentives will run concurrently from Jan. 1, 2025 through Dec. 31, 2025. The following are some frequently asked questions and answers on these incentives.

Release Notes
10/22/2025
USPS APIs Release Notes

For the latest updates, please review the USPS APIs Release Notes.

FAQs
10/20/2025
Release Notes
10/20/2025
Data Files
10/20/2025
ACS Tables: PARS 2024

This spreadsheet contains 12 tables outlining ACS volume and cost for UAA Mail from FY2024.