14 C.F.R. § 206.1
Notwithstanding the provisions of section 41101 of 49 U.S.C. Subtitle VII, and any term, condition or limitation attached to the exercise of the privileges of an air carrier certificate of public convenience and necessity which prohibits an air carrier from engaging in air transportation between any points on its route, the air carrier may carry between such points (a) any person or persons certified by a physician to be in need of immediate air transportation in order to secure emergency medical or surgical treatment together with any necessary attendant or attendants and (b) any medical supplies certified by a physician as requiring immediate air transportation for the protection of life. Air carriers offering to provide this emergency transportation shall file appropriate tariffs pursuant to Chapter 415 of 49 U.S.C. Subtitle VII.
14 C.F.R. §206.1
Secs. 204, 416, 72 Stat. 743, 771; 49 U.S.C. 1324 , 1386