2115.2 (B) Antedated Year Date(s) in Copyright Notice
When a work was first published with a year date in the copyright notice that was earlier than the year of first publication, the term of copyright is determined by the year date in the copyright notice, rather than the year of first publication. Likewise, when a work is published with multiple year dates in the copyright notice, the year dates may affect the term of copyright. Multiple year dates in a copyright notice also indicate that an earlier version or a portion of the work was previously published. Therefore, all antedated year date(s) in the copyright notice(s) should generally be cited in the certificate of renewal registration and renewal registration record. For more information about the effect of publication with antedated and multiple year dates in the copyright notice, see U.S. COPYRIGHT OFFICE, COMPENDIUM OF U.S. COPYRIGHT OFFICE PRACTICES Chs. 4, 8.2, & Supplementary Practice Nos. 18, 19, 27, 29, 35 & 37 (1st ed. 1973), available at http://copyright.gov/comp3/chap2100/doc/appendixA- noticerequirements.pdf.