that were deployed prior to the year 2000, including the Notice to Air Missions (NOTAM) system. (3) Outdated, insufficient, unsafe, or unstable The term outdated, insufficient, unsafe, or unstable means a legacy system for which the likelihood of failure creates a risk to air safety or security due to the legacy system's age, ability to be cost-effectively maintained, or any other factors that may compromise the performance or security of the legacy system. Such term includes a legacy system with a risk of a single point of failure or that lacks of sufficient back-up capability in the event of a failure. 408. Aeronautical mobile communications services (a) Satellite voice communications services The Administrator shall evaluate the addition of satellite voice communication services (referred to in this section as SatVoice ) to the Aeronautical Mobile Communications program (in this section referred to as the AMCS program ) that provides for the delivery of air traffic control messages in oceanic and remote continental airspace. (b) Analysis and implementation procedures Not later than 120 days after the date of enactment of this Act, the Administrator shall begin to develop the safety case analysis and stated implementation procedures for SatVoice instructions over the FAA’s controlled oceanic and remote continental airspace regions. (c) Requirements The analysis and implementation procedures required under subsection (b) shall include, at a minimum, the following: (1) Network and protocol testing and integration with satellite service providers. (2) Operational testing with aircraft to identify and resolve performance issues. (3) Collaboration with the International Civil Aviation Organization in defining Satcom Standards and Recommended Practices (SARPs), which shall include an RCP-130 performance standard as well as SatVoice standards. (4) Training of radio operators on new operation procedures and protocols. (5) A phased implementation plan for incorporating SatVoice services into the AMCS program. (6) The