The FAA said an updated draft of advisory circular (AC) 90-114A was created to facilitate operations using Automatic Dependent Surveillance-Broadcast (ADS-B) technology to remain in compliance with Part 91.225 and 91.227, required after Jan. 1, 2020. The AC applies to all U.S. operators intending to use ADS-B and provides guidance for the authorization of additional ADS-B Out and ADS-B In operations and their associated aircraft qualification and maintenance requirements. There is no authorization required by the FAA to conduct ADS-B Out operations in U.S.-designated airspace.