44 U.S.C. § 1901
“Government publication” as used in this chapter, means informational matter which is published as an individual document at Government expense, or as required by law.
(Pub. L. 90–620, , 82 Stat. 1283.)
Based on 44 U.S. Code, 1964 ed., § 81a (Pub. L. 87–579, § 1, , 76 Stat. 352).