The FAA’s ADS-B Out mandate, which became effective on January 2, presented a problem for John Morrissey. He runs a small aerobatic flight school at the East Kansas City Airport, located 29.6 nautical miles southeast of Kansas City International Airport—a Class B primary airport—which puts his hangar just inside the Mode C veil, and just inside the airspace where ADS-B Out is required.
Source: aopaLOAs for ADS-B?