Desde el año 2000 se otorgan frecuencias de baja potencia para emsioras no comerciales.
El organismo encargado de administrar las frecuencias y establecer las condiciones para estas emsiroas es la Federal Communications Commission (FCC).
Low Power FM Broadcast Radio Stations (LPFM)
The Low Power FM (LPFM) radio service was created by the Commission in January 2000. LPFM stations are authorized for noncommercial educational broadcasting only (no commercial operation) and operate with an effective radiated power (ERP) of 100 watts (0.1 kilowatts) or less, with maximum facilities of 100 watts ERP at 30 meters (100 feet) antenna height above average terrain (HAAT). The approximate service range of a 100 watt LPFM station is 5.6 kilometers (3.5 miles radius). LPFM stations are not protected from interference that may be received from other classes of FM stations.
FCC announces first opportunity for small community radio stations in 12 years http://www.prometheusradio.org/rules_announced
Map LPFM http://www.fcc.gov/maps/low_power_fm_opportunities_wo_2nd