Senate bills. S. 2477, 2480, 2482-84, 2486, 2489-91, 2494-96, 2498, 2502-4, 2507-9, 2512-13, 2515-16, 2518, 2522, 2525, 2527, 2530-37, 2540-41, 2545, 2547-48, 2553, 2557, 2559-61, 2563, 2566-67, 2570-72, and S. Con. Res. 63-66, S. Res. 160-171, 81st Congress.