If you want to operate in ADS-B designated airspace after January 1, 2020, Yes.
Under the rule, ADS-B Out performance will be required to operate in:
- Class A, B, and C airspace.
- Class E airspace within the 48 contiguous states and the District of Columbia 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 from the coastline of the United States out to 12 nautical miles.
- Around those airports identified in 14 CFR part 91, Appendix D.
The ADS-B Out rule does not apply in the airspace defined in items 2 and 4 above for any aircraft not originally certificated with an electrical system or that has not subsequently been certified with such a system installed, including balloons and gliders. For additional requirements for using the exception for item 4, please refer to CFR 91.225 section (d) for the requirements.