NOW

Mailing & Shipping Regulations

Domestic Mail Manual (DMM) effective June 20, 2021

International Mail Manual (IMM) effective June 20, 2021


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