Agency of the United Nations, based in Berne, Switzerland, responsible for regulating government-run postal services, in and between 189 member nations. Issues typically addressed include terminal dues (payments between countries for handling international mail), international direct-mail marketing, the Internet, and representation in the UPU. A Congress is held every five years in a different member country. In 1999, the 22nd Congress was held in Beijing, China.

Dictionary of Marketing Terms. Copyright © 2000 by Barron's Educational Series, Inc. All rights reserved.