No, since March 1, 1989 the copyright symbol © has not been required. You might also have something that qualifies as an unpublished work, in which case it may still be protected.
Go back to the Library's homepage
Use the Catalog to find books, videos, e-books, and other media
Search for online journal and newspaper articles, e-books, and streaming video
Guides for finding and citing sources in many different subject areas
Learn about the Library's spaces and services
No, since March 1, 1989 the copyright symbol © has not been required. You might also have something that qualifies as an unpublished work, in which case it may still be protected.