250 Postcards and Postal Cards

251 Description

251.1 General

Postcards and postal cards consist of single cards sent without a wrapper or envelope. Folded (double) cards must be mailed in envelopes at the First-Class Mail International rate of postage.

251.2 Reply–Paid Cards

Reply–paid cards are not accepted in international mail, except as provided in 132.2.

251.3 Specifications

Postcards must be made of cardboard or paper that meets the material and color specifications in 142.

251.4 Privately Manufactured Postcards

Privately manufactured postcards, except picture postcards, must bear the heading Postcard.