; (2) require each flight crewmember to wear a mask or protective face covering while on board an aircraft but outside the flight deck; (3) submit to the Administrator of the Federal Aviation Administration a proposal to permit flight crew members of the air carrier to wear a mask or protective face covering while at their stations in the flight deck, including a safety risk assessment with respect to such proposal; (4) provide flight and cabin crewmembers, airport customer service agents, and other employees whose job responsibilities involve interaction with passengers with masks or protective face coverings, gloves, and hand sanitizer and wipes with sufficient alcohol content; (5) ensure aircraft, including the cockpit and cabin, operated by such carrier are cleaned, disinfected, and sanitized after each use in accordance with Centers for Disease Control and Prevention guidance; (6) ensure enclosed facilities owned, operated, or used by such air carrier, including facilities used for flight or cabin crewmember training or performance of indoor maintenance, repair, or overhaul work, are cleaned, disinfected, and sanitized frequently in accordance with Centers for Disease Control and Prevention guidance; (7) provide air carrier employees whose job responsibilities involve cleaning, disinfecting, and sanitizing aircraft or enclosed facilities described in paragraphs (5) and (6) with masks or protective face coverings and gloves, and ensure that each contractor of the air carrier provides employees of such contractor with such materials