The proposed rule would establish requirements for remote identification of unmanned aircraft systems operated in the US. It outlines three categories of UAS - Standard RID, Limited RID, and UAS without RID. Standard and Limited RID UAS must broadcast and transmit identification and location information, while UAS without RID can only fly at FAA-recognized identification areas. The proposal requires transmission of identification elements through an FAA-approved unmanned aircraft service provider and raises concerns about safety, costs, technology limitations, and legality.