; and (B) by adding at the end the following: (f) Public health emergency exception During a public health emergency, the Administrator shall allow States, territories of the United States, and Indian Tribes to implement and enforce reasonable restrictions on air passengers at the point of origin of a direct flight to such State, territory, or Indian Tribe jurisdiction in accordance with requirements and restrictions determined by the State, territory, or Indian Tribe at the point of destination which may include, a temperature or other rapid check for any communicable disease which is the subject of the public health emergency, and which requirements and restrictions may include denial of boarding if such intended passenger is indicated for such disease. Such reasonable restrictions shall be implemented at the expense of the air carrier as determined necessary by a State, territory, or Indian Tribe. (g) Definitions For purposes of this section, the following definitions apply: (1) Public health emergency The term public health emergency means a declaration under section 319(a) of the Public Health Service Act ( 42 U.S.C. 247d(a) ) related to a communicable disease. (2) Reasonable restriction The term reasonable restriction means any good faith restriction or condition imposed or implemented on intended passengers prior to boarding a plane by a State, territory of the United States, or Indian Tribe to prevent the spread of a communicable disease during a public health emergency.