***Link*** :: [§ 91.225 Automatic Dependent Surveillance-Broadcast (ADS-B) Out equipment and use.](https://www.ecfr.gov/current/title-14/section-91.225) ***Description*** :: `= this.link` ***Author*** :: [[FAA]] ***Related To:*** [[FAR 91.215 Transponder Use]] #### Key Quotes > [!warning] Quotes below are heavily paraphrased * no person may operate an aircraft in the following airspace unless the aircraft has [[ADS-B]] Out * Class A * Class B and Class C airspace areas * Mode-C Veil up to 10,000' * Above the ceiling and within the lateral boundaries of a Class B or Class C airspace... upward to 10,000 * Class E airspace... at and above 10,000 feet MSL, excluding the airspace at and below 2,500 feet above the surface * Class E airspace at and above 3,000 feet MSL over the Gulf of Mexico * each person operating an aircraft equipped with ADS-B Out must operate this equipment in the transmit mode at all times unless... #source #far