(a)
In general— The Secretary of Homeland Security and the Administrator of the Transportation Security Administration may not prescribe or implement any regulation or policy that would allow employees of the Transportation Security Administration to request information relating to vaccinations from any passenger traveling on a flight between States or territories or possessions of the United States.
(b)
Rule of construction— Subsection (a) does not limit the authority of the Director of the Centers for Disease Control and Prevention to issue guidance or prescribe regulations relating to public health.