The Federal Communications Commission (FCC) in the USA published a Policy Statement FCC No. 23-27 on April 21, 2023 regarding ET Docket No. 23-122 - Principles for Promoting Efficient Use of Spectrum and Opportunities for New Services, and ET Docket No. 22-137 - Promoting Efficient Use of Spectrum through Improved Receiver Interference Immunity Performance. The Policy Statement establishes high-level principles for the future of efficient spectrum management, considering both the transmitter and receiver components within wireless systems.