; and (2) requiring each air carrier to prominently display on a publicly available Internet website of the air carrier the amount of space available for each passenger on passenger aircraft operated by the air carrier or by another air carrier with which the air carrier has a codesharing or other joint marketing arrangement, including the size, width, and pitch of seats, the amount of leg room, and the width of aisles on such aircraft. (c) Consultations In prescribing the regulations required under subsection (a), the Administrator shall consult with the Occupational Safety and Health Administration, the Centers for Disease Control and Prevention, passenger advocacy organizations, physicians, and ergonomic engineers. 108. Availability of lavatories on passenger aircraft (a) In general Subchapter I of chapter 417 of title 49, United States Code, is amended by adding at the end the following: 41725. Availability of lavatories on passenger aircraft (a) In general Each air carrier and foreign air carrier shall ensure that each passenger aircraft operated by the air carrier or foreign air carrier maintains sufficient functional lavatories (as determined by the Secretary of Transportation) that— (1) are available for use, free of charge, any time passengers are on board the aircraft