Public safety communications depend on reliability, predictability, and resilience. For decades, the lower 900 MHz band (902–928 MHz) has quietly served as a foundational layer for life-safety systems across the United States. According to one filing this band supports billions of unlicensed Part 15 devices—panic buttons, fire alarms, carbon monoxide detectors, emergency vehicle alerting systems, traffic signal preemption, gunshot detection sensors, SCBAs, man-down systems, wildfire detection, and many other mission-critical tools relied upon daily by first responders.