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Mailing & Shipping Regulations

Domestic Mail Manual (DMM) effective November 3, 2025

Temporary Postage Rates Effective 10-5-25 to 1-18-26

U.S. Postage Rates All Classes Effective July 13, 2025 (Rev 7/25)

International Mail Manual (IMM) effective November 3, 2025


USPS 2025 POSTAL CUSTOMER GUIDE


Address Quality Fact Sheet

Basic Design Elements For Letters & Cards

PUB 6850: Streamlined Mail Acceptance For Letters & Flats

New Mailing Standards for Lithium Batteries

Streamlined Mail Acceptance For Letters & Flats

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