Renegotiation, renegotiation act of 1943 (applicable to fiscal years ending. after June 30, 1943), renegotiation act of 1942 (applicable to fiscal years ending before July 1, 1943), including also sec. 3806 of internal revenue code, as amended, title 13 of 2d war powers act, 1942, repricing of war contracts (title 8, revenue act of 1943), Proclamation 2631 specifying June 30, 1945, as termination date of renegotiation act.