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Mailing & Shipping Regulations

Domestic Mail Manual (DMM) effective March 4, 2019

International Mail Manual (IMM) effective March 4, 2019


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

Drop Shipping Workflow, Appointment Information

Guide To Worldwide Postal Code And Address Formats