Code of Federal Regulations (KF70.A3) Law library keeps current and 2 years prior in print -5th floor and archived from 1938 in microfiche on the 4th floor
Federal Register (KF70.A2 Fifth Floor Stacks (note: older issues archived from 1936 are on microfiche/microfilm on the 4th floor)
Federal Legislative Histories:
State Legislative Materials:
Indian Health Service (IHS) (The Federal Health Program for American Indians and Alaska Natives)
Office of Inspector General (OIG) internal auditing agency for DHHS
The Association of State and Territorial Health Officials (ASTHO) provides links to state health agencies
Some significant Illinois health laws are listed here. Citations are to the Illinois Compiled Statutes, linked at the Illinois General Assembly website.