; (4) an assessment of the current software assurance practices, and the desired level or attributes to target in the software assurance program; (5) cost estimates, planned schedules, and performance benchmarks, including specific tasks, milestones, and timelines and including an identification of cost and schedule reserves, for the certification of new technologies into the national airspace system, including NextGen, Automatic Dependent Surveillance-Broadcast, Data Communications, National Airspace System Voice System, Collaborative Air Traffic Management Technologies, NextGen Weather, and System Wide Information Management; (6) methods for integrating emerging technologies throughout NextGen’s development, certification, and implementation process; and (7) best practices in research and development used by other organizations, such as NASA, NavCanada, and Eurocontrol. 742. Aviation fuel research, development, and usage The Administrator may conduct or supervise research, development, and service testing, currently being conducted under the Piston Aviation Fuels Initiative (PAFI) unleaded avgas program, that is required to allow the use of an unleaded aviation gasoline in existing aircraft as a replacement for leaded gasoline. 743. Air traffic surveillance over oceans and other remote locations (a) Establishment of program The Administrator, in consultation with NASA and other relevant agencies, shall establish a research and development program on civilian air traffic surveillance over oceans and other remote locations. Such program shall— (1) take into account the need for international interoperability of technologies and air traffic control systems