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ADS-B Deviation Authorization Preflight Tool (ADAPT)

ADAPT Fact Sheet


In 2010, the FAA published a final rule that established the airspace where certain aircraft operators are required to have Automatic Dependent Surveillance-Broadcast (ADS-B) Out equipment installed in order to operate after January 1, 2020. The ADS-B rule, 14 CFR § 91.225, describes the applicability of ADS-B to certain airspace—which we will call ADS-B rule airspace—and what aircraft must equip, and 14 CFR § 91.227 defines how the installed ADS-B system must perform. The FAA estimates more than 140,000 general aviation aircraft will be affected by the ADS-B mandate; however, many aircraft owners did not equip in advance of the mandate and will still need access to this airspace.  

The FAA has established its policy for granting an Air Traffic Control (ATC) authorization to deviate from the rule. This policy permits aircraft owners and operators flying aircraft without ADS-B Out equipment to seek an authorization to access ADS-B rule airspace. In collaboration with industry, the FAA has developed a web-based tool for pilots to submit their ATC authorization requests. This fact sheet outlines the FAA’s policy and methods for using the web tool to request an ATC authorized deviation; i.e., access ADS-B rule airspace without ADS-B installed, or with ADS-B installed but not working.