; and (C) in subsection (b) by striking develop dynamic simulation models and inserting develop or procure dynamic simulation models and tools each place it appears. (2) Clerical amendment The analysis for chapter 445 of title 49, United States Code, is amended by striking the item relating to section 44505 and inserting the following: 44505. Systems, procedures, facilities, services, and devices. . 619. NextGen programs (a) In general Not later than 180 days after the date of enactment of this Act, and periodically thereafter as the Administrator determines appropriate, the Administrator shall convene FAA officials to evaluate and expedite the implementation of NextGen programs and capabilities. (b) Nextgen program prioritization In allocating amounts appropriated pursuant to section 48101(a) of title 49, United States Code, the Secretary shall give priority to the following activities: (1) Performance-based navigation. (2) Data communications. (3) Terminal flight data manager. (4) Aeronautical information management. (5) Other activities as recommended by the NextGen Advisory Committee and determined by the Administrator to be appropriate. (c) Performance-based navigation (1) In general Not later than 3 years after the date of enactment of this Act, the Administrator shall fully implement performance-based navigation procedures for all terminal and enroute routes, including approach and departure procedures for covered airports. (2) Specific procedures Pursuant to paragraph (1), the Administrator shall prioritize the following performance-based navigation procedures: (A) Trajectory-based operations. (B) Optimized profile descents. (C) Multiple airport route separation. (D) Established on required navigation performance. (E) Converging runway display aids. (3) Performance-based navigation baseline equipage requirements In carrying out paragraph (1), the Administrator shall issue such regulations as may be required, and publish applicable advisory circulars, to establish the equipage baseline appropriate for