The National Airspace System (NAS) requires a high degree of reliability, availability, and resiliency to ensure uninterrupted delivery of aviation services while providing the highest level of safety in the world. Our highly trained, certified professional air traffic controllers require state-of-the-art equipment and dependable communication, navigation, and surveillance systems to deliver world-class service to all NAS users. Significant safeguards and redundancies are in place to ensure that NAS infrastructure and systems meet stringent reliability, availability, and safety standards to prevent service disruptions, and to minimize system impact should one occur. The programs included in the Capital Investment Plan (CIP) are critical to FAA's continued success in achieving and maintaining this high level of safety and service to the public and support the development and implementation of the ongoing transition to the Next Generation Air Transportation System (NextGen). CIP programs also support continued FAA leadership in global aviation and the development of future applications for new technologies such as Automatic Dependent Surveillance - Broadcast (ADS-B). The CIP provides the agency's latest five-year plan for the F&E programs supporting the development, acquisition, implementation, and sustainment of the systems that provide the infrastructure, the technology, and the capabilities of the NAS.