USPS quietly changed when postmarks are applied to mail. It’s part of their overall “Delivering for America” plan. Instead of same day, your 1st class and similar mail might now get the postmark stamp 1 to 2 days after they took possession of the mail piece. If you want to ensure a same-day postmark, USPS recommends going to a retail counter at any USPS post office.
The processing and distribution centers that apply postmarks are staying the same. It’s the transportation time and movement methods of the mail that have changed. It appears this change will predominantly affect rural areas, which typically vote Republican. Voters should now mail ballots at least 2 days earlier than in any previous election.
A postmark is the dated imprint over a stamp to cancel its use. It serves an internal USPS function. However, for over 7 decades, postmarks have been used by administrators as evidence that a deadline was met. Postmarks have been critical for legal forms, IRS tax filings, mail-in ballots, and many other purposes.
Generally, postmarks are applied at high speeds at USPS Processing & Distribution Centers (P&DC). These are massive facilities that cover specific “regions” of the country. They have dozens of mail-processing machines, dozens of loading docks for tractor-trailers, and so on. Our United States Postal Service uses a spoke-and-hub delivery model. The local Post Offices feed mail to and from the closest hub, often called the P&DC. 
Here’s a simplistic overview: A regional P&DC sends trucks to local post offices between 4-7:00 AM every morning. They drop off outbound mail for that area. The mailmen (carriers) sort and deliver the mail to homes and businesses. Throughout the day, that post office also collects inbound mail. It comes from the counter transactions, curbside blue boxes, homes, apartment complexes, businesses, and so on.
In the evenings, generally between 5-9:00 PM, trucks go back to those post offices and pick up the inbound mail. That mail is brought back to the P&DC that night for processing. That’s 2 trips to every post office, each day. As part of the (RTO) Regional Transportation Optimization initiative, USPS has eliminated evening collections at many post offices.
RTO started in October 2023 as a pilot. Effective Dec. 24, 2025, mail is no longer being picked up nightly at some 12,000 post offices. Inbound mail now sits in these post offices all day, picked up the following morning. RTO is to end evening collection at roughly 24,000 post offices by the end of summer.
According to the National Association of Postal Supervisors (NAPS), about 47% of the nation’s population will be affected by RTO. Additionally, 71% of the country’s ZIP Codes will be impacted. This also means those post offices will no longer be able to provide Express Mail, the overnight delivery service. Republicans must now mail ballots at least 2 days earlier than any previous election.
What criteria selected these locations for RTO? Post offices 50 miles or farther from a processing center (P&DC) will no longer have their mail picked up at the end of the day. Big cities, which typically vote Democratic, will not be affected. There is a regional PD&C in almost every left-leaning big city, as shown in this Excel list on Google Docs.
Democrat strongholds like Philly, Las Vegas, Los Angeles, Atlanta, Chicago, Milwaukee, Houston, Denver, Minneapolis, and more have P&DC’s in their city. This list and interactive maps provide more insight. Example: If you live in northern most part of MI, your mail could take 2 days by truck to reach the closest PD&C in Grand Rapids or Detroit. Trucks make many stops, have driver DOT regulations, and so on
About 15 years ago, there were over 320 P&DC-type mail operations across the country. USPS began a plan to drastically reduce this number by consolidating and closing locations. Their goal of only 60 regional processing centers is nearly complete. This means mail now travels much farther to reach the closest PD&C.
To further reduce costs, the post office also changed the way it moves our mail. They cut airline use by 90%. Almost all our mail is moved by truck now. They also switched from FedEx to UPS trucks. The further the distance to the closest P&DC, the longer it takes for mail to get processed and postmarked.
According to SaveThePostOffice, “Any mail sent M-F from an RTO post office won’t be postmarked until the next day. Saturday mail will be postmarked two days after it was sent. If a piece is sent on a Saturday before a Monday holiday, it won’t be postmarked until Tuesday – a gap of 3 days.”
USPS has done a horrible job informing the public of this dramatic change. Below is a map of 8 States that have the highest risk of postmark delays.
Additional Resources:
Federal Register – Postmarks and Postal Possession changes
USPS – Postmarking Changes: Myths and Facts
SaveThePostOffice – List of PDC Locations w/ Interactive Map
The post USPS Postmarks Now Stamped 1-2 Days After USPS Takes Possession. 47% Of Population Affected, Mostly Republican Areas (Ballots, Taxes, Legal Docs) appeared first on The Gateway Pundit.