Tuesday, October 05, 2004

ISSN

ISSN and the U.S. Postal Service has been revised. Something I never knew about the use of the ISSN.
In 1977 the United States Postal Service printed a notice in the Federal Register proposing that publications mailed at what were then called second class rates would be required to print a six-digit USPS identification number. At the request of publishers who were already printing the ISSN, the Postal Service agreed to accept the ISSN as an identification number when assigned or confirmed by the National Serials Data Program (NSDP), the U.S. national center for ISSN.

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