National Postal Forum 2026

12/13/2025 02:58

WASHINGTON — The Postal Service has helped celebrate the winter holidays with festive, seasonal stamps since 1962, when it issued its first Christmas stamp. Although customers had been asking for Christmas stamps for years, the first designs sparked controversy.

12/12/2025 12:00

WASHINGTON — The U.S. Postal Service today announced the Priority Mail and Priority Mail Express stamps it will release in 2026. There will be additional stamp subjects to be announced in the coming weeks and months. These designs are preliminary and may change.

12/10/2025 08:30

WASHINGTON — Next week is the last week to get holiday gifts and greetings in the mail by the recommended deadlines. Customer traffic at all Post Office locations has been steadily increasing since Dec. 1, and this week is expected to be the busiest of the year.

12/03/2025 08:04

WASHINGTON — The U.S. Postal Service highlights its long and proud history of ensuring a vital connection between American service members and their loved ones back home. From the battlefields of the Revolutionary War to modern-day global operations, the mission to deliver mail to the military has remained a cornerstone of U.S. postal history and a crucial morale booster.

11/21/2025 17:25

COLORADO — The U.S. Postal Service will observe the Thanksgiving federal holiday on Thursday, Nov. 27. All Post Office locations will be closed and only Priority Mail Express will be delivered that day. Regular mail delivery and retail services will resume on Friday, Nov. 28.

11/17/2025 09:54

WASHINGTON — The U.S. Postal Service today announced that USPS Operation Santa is now open for letter adoption for the 2025 holiday season. Starting today, individuals, families, workplaces and community groups can go to USPSOperationSanta.com to adopt letters to Santa and help make the holidays brighter for children and families across the country.

11/05/2025 07:29

COLORADO— The U.S. Postal Service will observe Veterans Day on Tuesday, Nov. 11. All Post Office locations will be closed in recognition of the federal holiday. Only Priority Mail Express will be delivered that day, and regular mail delivery and retail services will resume on Wednesday, Nov. 12.

Help Stamp Out Breast Cancer

10/24/2025 14:50

COLORADO — The Postal Service is more than ready to deliver for the 2025 holiday season. Continued investment in modernization will boost the strong service customers have come to expect throughout the organization’s 250 years of service to the nation.

10/10/2025 06:15

COLORADO — October is Breast Cancer Awareness Month, and the U.S. Postal Service is reminding customers that they can help fund the cause by purchasing the Breast Cancer Research stamp.

Informed Delivery API Technical Specifications V1.0_5.0

10/09/2025 06:33

COLORADO — The U.S. Postal Service will observe Columbus Day on Monday, Oct. 13. Post Office locations will be closed in recognition of the federal holiday. Only Priority Mail Express items will be delivered on the holiday, and regular mail delivery and retail services will resume on Tuesday, Oct. 14.

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ID API Release Notes Release V1.0

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This document outlines the CASS/MASS certified vendors list for RDI™ Cycle O.