; and (2) that exempt from the prohibition described in paragraph (1)— (A) any member of the flight crew on duty on an aircraft; (B) any flight attendant on duty on an aircraft; and (C) any Federal law enforcement officer acting in an official capacity. (b) Definitions In this section: (1) Flight The term flight means, with respect to an aircraft, the period beginning when the aircraft takes off and ending when the aircraft lands. (2) Mobile communications device (A) In general The term mobile communications device means any portable wireless telecommunications equipment utilized for the transmission or reception of voice data. (B) Limitation The term mobile communications device does not include a phone installed on an aircraft. . (b) Table of contents The table of contents at the beginning of chapter 417 is amended by inserting after the item relating to section 41724 the following: 41725. Cell phone voice communications. . 3118. TICKETS Act (a) Short title This section may be cited as the Transparency Improvements and Compensation to Keep Every Ticketholder Safe Act of 2017 or the TICKETS Act . (b) Boarded passengers Beginning on the date of enactment of this Act, once a revenue passenger is approved by a gate attendant to clear the boarding area and board an aircraft, the applicable air carrier may not deny that passenger permission to board the aircraft without the consent of the passenger unless— (1) the passenger poses a safety, security, or health risk to oneself or to the other passengers