later than 1 year after the date of enactment of this section, the Comptroller General shall brief the appropriate committees of Congress on the study required by subsection (a), together with recommendations for such legislation and administrative action as the Comptroller General determines appropriate. (2) Report Not later than 6 months after the briefing required by paragraph (1) is provided, the Comptroller General shall submit a report to the appropriate committees of Congress on the study required by subsection (a), together with recommendations for such legislation and administrative action as the Comptroller General determines appropriate. (c) Definition of air carrier In this section, the term air carrier has the meaning given that term in section 40102 of title 49, United States Code. 714. Increase in civil penalties (a) In general Section 46301(a) of title 49, United States Code, is amended, in the matter preceding subparagraph (A), by striking $25,000 and inserting $50,000 . (b) Effective date The amendment made by subsection (a) shall apply to violations occurring on or after the date of enactment. (c) Conforming regulations The Secretary shall revise such regulations as necessary to conform to the amendment made by subsection (a). 715. Family seating (a) In general Not later than 180 days after the date of enactment of this section, the Secretary shall issue a notice of proposed rulemaking to establish a policy directing air carriers that assign seats, or allow individuals to select seats in advance of the date of departure of a flight, to sit each young child adjacent to an accompanying adult, to the greatest extent practicable, if adjacent seat assignments are available at any time after the ticket is issued for each young child and before the first passenger boards the flight. (b) Prohibition on fees The notice of proposed rulemaking described in subsection (a) shall include a provision that prohibits an air carrier from charging a fee, or imposing an additional cost beyond the ticket price of