NPRM published by the FAA about Remote ID of Small UAS
On December 20, 2019, the Federal Aviation Administration (FAA) released the Notice of Proposed Rulemaking (NPRM) on the Remote Identification (Remote ID) of Unmanned Aircraft Systems (UAS) operating in the airspace of the United States and weighing more than 250g. The Remote ID is the ability for a UAS in flight to provide identification information that can be received by other parties. It is necessary to address aviation safety and security issues related to the integration and operation of UAS and is an essential component of future UAS Traffic Management.
The NPRM proposes to prohibit the use of Automatic Dependent Surveillance-Broadcast (ADS-B) Out and Air Traffic Control (ATC) Transponder in most UAS operations, and in particular the use of ADS-B Out as a means of meeting the Remote ID requirements. However it recognizes that ADS-B Out and ATC transponder are necessary if the UAS is flying under a flight plan and is in two-way radio communication with ATC, in which case ADS-B may be carried and operated in isolation from the Remote ID requirement. This covers large UAS operating in controlled airspace.
The proposed rule is on consultation until 02 March 2020 and comments can be submitted here