The Federal Communications Commission’s (FCC) Office of Engineering and Technology has requested comments on a series of spectrum policy recommendations proposed by the FCC’s Technological Advisory Council (TAC) “to address the increasing challenges of efficient and fair allocation of spectrum in congested RF [radio frequency] environments, and in particular, the challenges of finding a balance between the rights and responsibilities of transmitters and receivers.” According to the Notice, “The TAC believes that adoption of these principles…could be useful in helping to improve the compatibility of services that operate under [existing or] new spectrum allocations.”