What Criteria Determines Eligibility of Subjects for Commemoration on U.S. Stamps and Stationery?
The U.S. Postal Service and the members of the Citizens’ Stamp Advisory Committee (CSAC) have set certain basic criteria for determining eligibility of subjects for commemoration on U.S. stamps and stationery. these criteria were first formulated about the time of the Postal Reorganization in the early 1970s, and have been refined and expanded gradually since then.