All aircraft flying in designated controlled airspace – generally the same busy airspace where transponders are currently required – must be equipped with ADS-B Out avionics by January 1, 2020.
![](https://www.iFlightPlanner.com/UserFiles/iFlightPlanner-2018-0409-ADSB_Deadline_1475.png)
Questions about equipping? Please see the FAA's FAQs or contact them at adsb@faa.gov.