; and (9) establish guidelines, or adhere to existing applicable guidelines, for notifying or contacting employees who may have come into physical contact or interaction with an employee who has been diagnosed with such airborne disease. (b) Limited exceptions The requirement for cabin and flight crewmembers to wear a mask or protective face covering under subsections (a)(1) and (a)(2) shall not apply while— (1) consuming food or beverage; (2) addressing a legitimate medical need that justifies temporary removal of the mask or face covering; (3) donning a supplemental oxygen mask in the event of a reduction in the pressure altitude inside the cabin; (4) assisting another crewmember or passenger in distress; or (5) performing another legitimate action identified by the air carrier or Administrator in any regulation issued pursuant to this section. 50205. Protection of certain Federal Aviation Administration employees during public health emergencies (a) In general During the period of any national emergency declared by the President under the National Emergencies Act ( 50 U.S.C. 1601 et seq.) with respect to an airborne disease, in order to maintain the safe and efficient operation of the air traffic control system, the Administrator shall— (1) provide air traffic controllers, aviation safety inspectors, and airway transportation systems specialists of the Administration with masks or protective face coverings, gloves, and hand sanitizer and wipes with sufficient alcohol content; (2) ensure air traffic control facilities are cleaned, disinfected, and sanitized frequently in accordance with Centers for Disease Control and Prevention guidance