44 U.S.C. § 1331
National Academy of Sciences: report
In addition to the usual number of the report of the National Academy of Sciences, two thousand copies shall be printed: five hundred for the Senate, one thousand for the House of Representatives, and five hundred for distribution by the National Academy of Sciences.
( Pub. L. 90–620 , Oct. 22, 1968 , 82 Stat. 1270 .)