Public laws, 93d Congress. 529. H.R. 17505, act to rescind certain budget authority recommended in messages of the President of Sept. 20, 1974 (H.doc.93-361),Oct. 4, 1974 (H.doc.93-365) and Nov. 13, 1974 (H.doc.93-387), transmitted pursuant to sec. 1012 of Impoundment control act of 1974.