Description / Abstract: The document contains Minimum Operational Performance Standards for airborne equipment to support Automatic Dependent Surveillance – Broadcast utilizing the Universal Access Transceiver (UAT). UAT is a multi-purpose aeronautical data link intended to support not only ADS-B, but also Flight Information Service – Broadcast (FIS-B), Traffic Information Service – Broadcast (TIS-B) and, if required in the future, supplementary ranging and positioning capabilities. The document was developed in parallel with DO-260B.