; and (2) that exempt from the prohibition described in paragraph (1)— (A) any member of the flight crew on duty on an aircraft; and (B) 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) Clerical amendment The table of sections for chapter 417 of title 49, United States Code, is amended by inserting after the item relating to section 41724 the following new item: 41725. Prohibition on certain cell phone voice communications. . 119L. (a) Section 40117 of title 49, United States Code, is amended— (1) in paragraph (b)(4), by striking $4.00 or $4.50 and inserting $4.00 or any whole- or half-dollar increment up to $8.50 ; and (2) in subsection (e), by adding a new paragraph (3) as follows: (3) The maximum passenger facility charge that may be collected from a passenger boarding a second flight on a one-way trip or on a trip in each direction of a round trip through an airport that imposes a charge may not exceed $4.50. . (b) Section 47114(f) of such title 49 is amended— (1) in paragraph (1)— (A) by striking paragraph (3) and inserting paragraph (4) ; (B) by striking percent and inserting percent, but not more than 1.0 percent ; (2) by redesignating paragraphs (2) and (3) as paragraphs (3) and (4)