U.S. Constitution
Commerce Clause
(Article 1, Sec. 8)
Public Health Service
Act (42 U.S.C. 264)
Homeland Security Act
of 2002
U.S. Dept. of Health
& Human Services (USDHHS)
Health Resources
Services Administration (HRSA)
Centers for Disease
Control and Prevention (CDC)
Centers for Medicare
& Medicaid Services (CMS)