Penalty Mail Stamps  
Stamps for official government mail.
Penalty Mail is the type of official mail authorized for use exclusively by the federal government for official business.

This official mail is authorized by federal law to be transmitted without prepayment of postage.

The Penalty Mail System (PMS)--used with penalty meter indicia, penalty permit imprint indicia, penalty business reply indicia, and Express MailĀ® - enables participating agencies to achieve total official mail accountability. PMS stamp stock, stamped cards, and stamped envelopes are available for official use only by authorized government agencies.

Related Publications:

Penalty Mail Stamp System, Publication 350 (HTML)
Penalty Mail Stamp System, Publication 350 (PDF)


 
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