Regulations last checked for updates: Feb 21, 2025

Title 42 - Public Health last revised: Feb 19, 2025
authority: Sec. 215, 58 Stat. 690, as amended; 42 U.S.C. 216,sec. 321, 53 Stat. 695, as amended; 42 U.S.C. 248,unless
source: 21 FR 9830, Dec. 12, 1956, unless otherwise noted.