Section 42c, Pub. L. 85–778, § 1, Aug. 27, 1958, 72 Stat. 934; H. Res. No. 532, Eighty-eighth Congress, Oct. 2, 1963, enacted into permanent law by Pub. L. 88–454, § 103, Aug. 20, 1964, 78 Stat. 550; H. Res. No. 1003, Ninetieth Congress, Dec. 14, 1967, enacted into permanent law by Pub. L. 90–392, title I, July 9, 1968, 82 Stat. 318, related to airmail and special delivery stamps for House Members and standing committees.

Section 42d, Pub. L. 85–778, § 2, Aug. 27, 1958, 72 Stat. 934; H. Res. No. 532, Eighty-eighth Congress, Oct. 2, 1963, enacted into permanent law by Pub. L. 88–454, § 103, Aug. 20, 1964, 78 Stat. 550; H. Res. No. 1003, Ninetieth Congress, Dec. 14, 1967, enacted into permanent law by Pub. L. 90–392, title I, July 9, 1968, 82 Stat. 318, related to airmail and special delivery stamps for House Speaker, leaders, whips, and officers.