Renegotiation of government contracts : Sec. 403 of Sixth Supplemental National Defense Appropriation Act, 1942 (P.L. 528, Ch. 247, 77th Congress, approved April 28, 1942. 56 Stat. 245, 41 U.S.C.A. (note) sec. 1)
"An Act: Making additional appropriations for the national defense for the fiscal year ending June 30, 1942, and for other purposes.": [volume] 1, document no. 1.