28 years for first term; now automatic extension of 67 years for second term
Created before 1-1-78 but published between then and 12-31-2002
1-1-78, the effective date of the 1976 Act
Life of author + 70 years or 12-31-2047, whichever is greater
Government Publications
In the public domain when authored by a government employees as part of their job
May be copyrighted when incorporated into other material or published with added features by a vendor.
Work authored with support of government grants is copyrighted.