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Introduction on U S Postal Service Announces Changes To Postmark Process

Starting now, the date stamped on a letter will reflect when it's first processed by an automatic sorter, not the date you dropped it ... Prior to December 24, if you dropped off a letter with a stamp at the

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Changes to USPS postmarks in new year
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Changes to USPS postmarks in new year

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New rule

USPS updates postmark guidelines: What to know
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Last Updated: May 22, 2026

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