Goto Section: 90.16 | 90.19 | Table of Contents

FCC 90.17
Revised as of
Goto Year:1996 | 1998
Sec. 90.17  Local Government Radio Service.

    (a) Eligibility. Any territory, possession, state, city, county, 
town or similar governmental entity, including a district and an 
authority, but not including a school district or authority or a park 
district or authority except as provided for in Sec. 90.242, is eligible 
to hold authorizations in the Local Government Radio Service to operate 
radio stations for transmission of communications essential to official 
activities of the licensee. Additionally, the following non-governmental 
entities are eligible to hold authorizations in the Local Government 
Radio Service, provided that their applications are accompanied by a 
statement from the governmental entity having legal jurisdiction over 
the area to be served, supporting the request:
    (1) Persons or organizations charged with specific fire protection 
activities for communications essential to the official fire activities 
of the licensee; or
    (2) Persons or organizations charged with specific forestry-
conservation activities for communications essential to the official 
forestry-conservation activities of the licensee.
    (b) Frequencies available. The following table indicates frequencies 
available for assignment to stations in the Local Government Radio 
Service, together with the class of station(s) to which they are 
normally assigned and the specific assignment limitations which are 
explained in paragraph (c) of this section.

             Local Government Radio Service Frequency Table             
------------------------------------------------------------------------
         Frequency or band             Class of station(s)   Limitations
------------------------------------------------------------------------
                                Kilohertz                               
------------------------------------------------------------------------
    530............................  Base (T.I.S.).........          23 
1610...............................  ......do..............          23 
2726...............................  Base or mobile........           1 
2000 to 10,000.....................  Fixed, base or mobile.          25 
------------------------------------------------------------------------
                                Megahertz                               
------------------------------------------------------------------------
37.10..............................  Base or mobile........           2 
37.18..............................  ......do..............           2 
37.26..............................  ......do..............           2 
39.06..............................  Mobile................        2, 3 
39.10..............................  Base or mobile........           2 
39.18..............................  ......do..............           2 
39.50..............................  ......do..............           2 
39.58..............................  ......do..............           2 
39.82..............................  ......do..............           2 
39.90..............................  ......do..............           2 
39.98..............................  ......do..............           2 
45.08..............................  ......do..............             
45.12..............................  ......do..............             
45.16..............................  ......do..............             
45.20..............................  ......do..............             
45.24..............................  ......do..............             
45.28..............................  ......do..............             
45.32..............................  ......do..............             
45.36..............................  ......do..............             
45.40..............................  ......do..............             
45.44..............................  ......do..............             
45.48..............................  ......do..............             
45.52..............................  ......do..............             
45.56..............................  ......do..............             
45.60..............................  ......do..............             
45.64..............................  ......do..............             
46.52..............................  ......do..............             
46.54..............................  ......do..............             
46.56..............................  ......do..............             
46.58..............................  ......do..............             
72.00 to 76.00.....................  Operational fixed.....           6 
150 to 170.........................  Base or mobile........      29, 31 
153.740............................  Mobile................             
153.7475...........................  ......do..............          24 
153.755............................  ......do..............             
153.7625...........................  ......do..............          24 
153.785............................  ......do..............             
153.7925...........................  ......do..............          24 
153.800............................  ......do..............             
153.8075...........................  ......do..............          24 
153.815............................  ......do..............             
153.8225...........................  ......do..............          24 
153.845............................  ......do..............             
153.8525...........................  ......do..............          24 
153.860............................  ......do..............             
153.8675...........................  ......do..............          24 
153.875............................  ......do..............             
153.8825...........................  ......do..............          24 
153.905............................  ......do..............             
153.9125...........................  ......do..............          24 
153.920............................  ......do..............             
153.9275...........................  ......do..............          24 
153.935............................  ......do..............             
153.9425...........................  ......do..............          24 
153.965............................  ......do..............             
153.9725...........................  ......do..............          24 

[[Page 276]]

                                                                        
153.980............................  ......do..............             
153.9875...........................  ......do..............          24 
153.995............................  ......do..............             
154.0025...........................  ......do..............          24 
154.025............................  Base or mobile........             
154.0325...........................  ......do..............          24 
154.040............................  ......do..............           5 
154.0475...........................  ......do..............       5, 24 
154.055............................  ......do..............           5 
154.0625...........................  ......do..............       5, 24 
154.085............................  ......do..............           5 
154.0925...........................  ......do..............       5, 24 
154.100............................  ......do..............           5 
154.1075...........................  ......do..............       5, 24 
154.115............................  ......do..............           5 
154.1225...........................  ......do..............       5, 24 
154.45625..........................  Fixed or mobile.......  9, 20, 21, 
                                                                     22 
154.46375..........................  ......do..............  7, 19, 20, 
                                                                 21, 22 
154.47125..........................  ......do..............  7, 20, 21, 
                                                                     22 
154.47875..........................  ......do..............  19, 20, 21,
                                                                     22 
154.965............................  Base or mobile........             
154.9725...........................  ......do..............          24 
154.980............................  ......do..............             
154.9875...........................  ......do..............          24 
154.995............................  ......do..............             
155.0025...........................  ......do..............          24 
155.025............................  ......do..............             
155.0325...........................  ......do..............          24 
155.040............................  ......do..............             
155.0475...........................  ......do..............          24 
155.055............................  ......do..............  ...........
155.0625...........................  ......do..............          24 
155.085............................  ......do..............  ...........
155.0925...........................  ......do..............          24 
155.100............................  ......do..............  ...........
155.1075...........................  ......do..............          24 
155.115............................  ......do..............  ...........
155.1225...........................  ......do..............          24 
155.145............................  ......do..............  ...........
155.1525...........................  ......do..............          24 
155.715............................  ......do..............  ...........
155.7225...........................  ......do..............          24 
155.745............................  ......do..............  ...........
155.7525...........................  ......do..............          24 
155.760............................  ......do..............  ...........
155.7675...........................  ......do..............          24 
155.775............................  ......do..............  ...........
155.7825...........................  ......do..............          24 
155.805............................  ......do..............  ...........
155.8125...........................  ......do..............          24 
155.820............................  ......do..............  ...........
155.8275...........................  ......do..............          24 
155.835............................  ......do..............  ...........
155.8425...........................  ......do..............          24 
155.865............................  ......do..............  ...........
155.8725...........................  ......do..............          24 
155.880............................  ......do..............  ...........
155.8875...........................  ......do..............          24 
155.895............................  ......do..............  ...........
155.9025...........................  ......do..............          24 
155.925............................  ......do..............  ...........
155.9325...........................  ......do..............          24 
155.940............................  ......do..............  ...........
155.9475...........................  ......do..............          24 
155.955............................  ......do..............  ...........
155.9625...........................  ......do..............          24 
155.985............................  Mobile................  ...........
155.9925...........................  ......do..............          24 
156.000............................  ......do..............  ...........
156.0075...........................  ......do..............          24 
156.015............................  ......do..............  ...........
156.0225...........................  ......do..............          24 
158.745............................  Base and mobile.......  ...........
158.7525...........................  ......do..............          24 
158.760............................  ......do..............  ...........
158.7675...........................  ......do..............          24 
158.775............................  ......do..............  ...........
158.7825...........................  ......do..............          24 
158.805............................  ......do..............  ...........
158.8125...........................  ......do..............          24 
158.820............................  ......do..............  ...........
158.8275...........................  ......do..............          24 
158.835............................  ......do..............  ...........
158.8425...........................  ......do..............          24 
158.865............................  Mobile................  ...........
158.8725...........................  ......do..............          24 
158.880............................  ......do..............  ...........
158.8875...........................  ......do..............          24 
158.895............................  ......do..............  ...........
158.9025...........................  ......do..............          24 
158.925............................  ......do..............  ...........
158.9325...........................  ......do..............          24 
158.940............................  ......do..............  ...........
158.9475...........................  ......do..............          24 
158.955............................  ......do..............  ...........
158.9625...........................  ......do..............          24 
169-172............................  ......do..............          27 
173.20375..........................  Fixed or mobile.......  7, 20, 21, 
                                                                     22 
173.2100...........................  ......do..............   7, 8, 21, 
                                                                     22 
173.2375...........................  ......do..............  9, 20, 21, 
                                                                     22 
173.2625...........................  ......do..............  9, 20, 21, 
                                                                     22 
173.2875...........................  ......do..............  9, 20, 21, 
                                                                     22 
173.3125...........................  ......do..............  9, 20, 21, 
                                                                     22 
173.3375...........................  ......do..............  9, 20, 21, 
                                                                     22 
173.3625...........................  ......do..............  9, 20, 21, 
                                                                     22 
173.3900...........................  ......do..............   7, 8, 21, 
                                                                     22 
173.39625..........................  ......do..............  7, 20, 21, 
                                                                     22 
220 to 222.........................  Base and mobile.......           4 
450 to 470.........................  Fixed, base, or mobile      10, 29 
453.0125...........................  Mobile................          30 
453.025............................  Central control, fixed          11 
453.0375...........................  Base or mobile........          24 
453.050............................  ......do..............          12 
453.05625..........................  ......do..............      12, 28 
453.06250..........................  ......do..............      12, 24 
453.06875..........................  ......do..............      12, 28 
453.075............................  Central control, fixed          11 
453.0875...........................  Base or mobile........          24 
453.100............................  ......do..............          12 
453.10625..........................  ......do..............      12, 28 
453.11250..........................  ......do..............      12, 24 
453.11875..........................  ......do..............      12, 28 
453.125............................  Central control, fixed          11 
453.1375...........................  Base or mobile........          24 
453.150............................  ......do..............          12 
453.15625..........................  ......do..............      12, 28 
453.16250..........................  ......do..............      12, 24 
453.16875..........................  ......do..............      12, 28 
453.175............................  Central control, fixed          11 
453.1875...........................  Base or mobile........          24 
453.200............................  ......do..............          12 
453.20625..........................  ......do..............      12, 28 
453.21250..........................  ......do..............      12, 24 
453.21875..........................  ......do..............      12, 28 
453.225............................  ......do..............  ...........
453.23125..........................  ......do..............          28 
453.23750..........................  ......do..............          24 
453.24375..........................  ......do..............          28 
453.250............................  ......do..............          12 
453.25625..........................  ......do..............      12, 28 
453.26250..........................  ......do..............      12, 24 
453.26875..........................  ......do..............      12, 28 
453.275............................  ......do..............  ...........
453.28125..........................  ......do..............          28 
453.28750..........................  ......do..............          24 
453.29375..........................  ......do..............          28 
453.300............................  ......do..............          12 
453.30625..........................  ......do..............      12, 28 
453.31250..........................  ......do..............      12, 24 
453.31875..........................  ......do..............      12, 28 
453.325............................  ......do..............  ...........
453.33125..........................  ......do..............          28 

[[Page 277]]

                                                                        
453.33750..........................  ......do..............          24 
453.34375..........................  ......do..............          28 
453.350............................  ......do..............          12 
453.35625..........................  ......do..............      12, 28 
453.36250..........................  ......do..............      12, 24 
453.36875..........................  ......do..............      12, 28 
453.375............................  ......do..............  ...........
453.38125..........................  ......do..............          28 
453.38750..........................  ......do..............          24 
453.39375..........................  ......do..............          28 
453.400............................  ......do..............          12 
453.40625..........................  ......do..............      12, 28 
453.41250..........................  ......do..............      12, 24 
453.41875..........................  ......do..............      12, 28 
453.425............................  ......do..............  ...........
453.43125..........................  ......do..............          28 
453.43750..........................  ......do..............          24 
453.44375..........................  ......do..............          28 
453.450............................  ......do..............          12 
453.45625..........................  ......do..............      12, 28 
453.46250..........................  ......do..............      12, 24 
453.46875..........................  ......do..............      12, 28 
453.475............................  ......do..............  ...........
453.48125..........................  ......do..............          28 
453.48750..........................  ......do..............          24 
453.49375..........................  ......do..............          28 
453.500............................  ......do..............          12 
453.50625..........................  ......do..............      12, 28 
453.51250..........................  ......do..............      12, 24 
453.51875..........................  ......do..............      12, 28 
453.525............................  ......do..............  ...........
453.53125..........................  ......do..............          28 
453.53750..........................  ......do..............          24 
453.54375..........................  ......do..............          28 
453.550............................  ......do..............          12 
453.55625..........................  ......do..............      12, 28 
453.56250..........................  ......do..............      12, 24 
453.56875..........................  ......do..............      12, 28 
453.575............................  ......do..............  ...........
453.58125..........................  ......do..............          28 
453.58750..........................  ......do..............          24 
453.59375..........................  ......do..............          28 
453.600............................  Base or mobile........          12 
453.60625..........................  ......do..............      12, 28 
453.61250..........................  ......do..............      12, 24 
453.61875..........................  ......do..............      12, 28 
453.625............................  ......do..............  ...........
453.63125..........................  ......do..............          28 
453.63750..........................  ......do..............          24 
453.64375..........................  ......do..............          28 
453.650............................  ......do..............          12 
453.65625..........................  ......do..............      12, 28 
453.66250..........................  ......do..............      12, 24 
453.66875..........................  ......do..............      12, 28 
453.675............................  ......do..............  ...........
453.68125..........................  ......do..............          28 
453.68750..........................  ......do..............          24 
453.69375..........................  ......do..............          28 
453.700............................  ......do..............          12 
453.70625..........................  ......do..............      12, 28 
453.71250..........................  ......do..............      12, 24 
453.71875..........................  ......do..............      12, 28 
453.725............................  ......do..............  ...........
453.73125..........................  ......do..............          28 
453.73750..........................  ......do..............          24 
453.74375..........................  ......do..............          28 
453.750............................  ......do..............          12 
453.75625..........................  ......do..............      12, 28 
453.76250..........................  ......do..............      12, 24 
453.76875..........................  ......do..............      12, 28 
453.775............................  ......do..............  ...........
453.78125..........................  ......do..............          28 
453.78750..........................  ......do..............          24 
453.79375..........................  ......do..............          28 
453.800............................  ......do..............          12 
453.80625..........................  ......do..............      12, 28 
453.81250..........................  ......do..............      12, 24 
453.81875..........................  ......do..............      12, 28 
453.825............................  ......do..............  ...........
453.83125..........................  ......do..............          28 
453.83750..........................  ......do..............          24 
453.84375..........................  ......do..............          28 
453.850............................  ......do..............          12 
453.85625..........................  ......do..............      12, 28 
453.86250..........................  ......do..............      12, 24 
453.86875..........................  ......do..............      12, 28 
453.875............................  ......do..............  ...........
453.88125..........................  ......do..............          28 
453.88750..........................  ......do..............          24 
453.89375..........................  ......do..............          28 
453.900............................  ......do..............          12 
453.90625..........................  ......do..............      12, 28 
453.91250..........................  ......do..............      12, 24 
453.91875..........................  ......do..............      12, 28 
453.925............................  ......do..............  ...........
453.93125..........................  ......do..............          28 
453.93750..........................  ......do..............          24 
453.94375..........................  ......do..............          28 
453.950............................  ......do..............          12 
453.95625..........................  ......do..............      12, 28 
453.96250..........................  ......do..............      12, 24 
453.96875..........................  ......do..............      12, 28 
453.975............................  ......do..............  ...........
453.98125..........................  ......do..............          28 
453.98750..........................  ......do..............          24 
453.99375..........................  ......do..............          28 
458.025............................  Radio call boxes,           11, 13 
                                      fixed.                            
458.03750..........................  Mobile................          24 
458.050............................  ......do..............          12 
458.05625..........................  ......do..............      12, 28 
458.06250..........................  ......do..............      12, 24 
458.06875..........................  ......do..............      12, 28 
458.075............................  Radio call boxes,           11, 13 
                                      fixed.                            
458.08750..........................  Mobile................          24 
458.100............................  ......do..............          12 
458.10625..........................  ......do..............      12, 28 
458.11250..........................  ......do..............      12, 24 
458.11875..........................  ......do..............      12, 28 
458.125............................  Radio call boxes,           11, 13 
                                      fixed.                            
458.13750..........................  Mobile................          24 
458.150............................  ......do..............          12 
458.15625..........................  ......do..............      12, 28 
458.16250..........................  ......do..............      12, 24 
458.16875..........................  ......do..............      12, 28 
458.175............................  Radio call boxes,           11, 13 
                                      fixed.                            
458.18750..........................  Mobile................          24 
458.200............................  ......do..............          12 
458.20625..........................  ......do..............      12, 28 
458.21250..........................  ......do..............      12, 24 
458.21875..........................  ......do..............      12, 28 
458.225............................  ......do..............  ...........
458.23125..........................  ......do..............          28 
458.23750..........................  ......do..............          24 
458.24375..........................  ......do..............          28 
458.250............................  ......do..............          12 
458.25625..........................  ......do..............      12, 28 
458.26250..........................  ......do..............      12, 24 
458.26875..........................  ......do..............      12, 28 
458.275............................  ......do..............  ...........
458.28125..........................  ......do..............          28 
458.28750..........................  ......do..............          24 
458.29375..........................  ......do..............          28 
458.300............................  ......do..............          12 
458.30625..........................  ......do..............      12, 28 
458.31250..........................  ......do..............      12, 24 
458.31875..........................  ......do..............      12, 28 
458.325............................  ......do..............  ...........
458.33125..........................  ......do..............          28 
458.33750..........................  ......do..............          24 
458.34375..........................  ......do..............          28 
458.350............................  ......do..............          12 
458.35625..........................  ......do..............      12, 28 
458.36250..........................  ......do..............      12, 24 
458.36875..........................  ......do..............      12, 28 
458.375............................  ......do..............  ...........
458.38125..........................  ......do..............          28 
458.38750..........................  ......do..............          24 
458.39375..........................  ......do..............          28 
458.400............................  ......do..............          12 
458.40625..........................  ......do..............      12, 28 
458.41250..........................  ......do..............      12, 24 
458.41875..........................  ......do..............      12, 28 
458.425............................  ......do..............  ...........
458.43125..........................  ......do..............          28 
458.43750..........................  ......do..............          24 
458.44375..........................  ......do..............          28 

[[Page 278]]

                                                                        
458.450............................  ......do..............          12 
458.45625..........................  ......do..............      12, 28 
458.46250..........................  ......do..............      12, 24 
458.46875..........................  ......do..............      12, 28 
458.475............................  ......do..............  ...........
458.48125..........................  ......do..............          28 
458.48750..........................  ......do..............          24 
458.49375..........................  ......do..............          28 
458.500............................  ......do..............          12 
458.50625..........................  ......do..............      12, 28 
458.51250..........................  ......do..............      12, 24 
458.51875..........................  ......do..............      12, 28 
458.525............................  ......do..............  ...........
458.53125..........................  ......do..............          28 
458.53750..........................  ......do..............          24 
458.54375..........................  ......do..............          28 
458.550............................  ......do..............          12 
458.55625..........................  ......do..............      12, 28 
458.56250..........................  ......do..............      12, 24 
458.56875..........................  ......do..............      12, 28 
458.575............................  ......do..............  ...........
458.58125..........................  ......do..............          28 
458.58750..........................  ......do..............          24 
458.59375..........................  ......do..............          28 
458.600............................  ......do..............          12 
458.60625..........................  ......do..............      12, 28 
458.61250..........................  ......do..............      12, 24 
458.61875..........................  ......do..............      12, 28 
458.625............................  ......do..............  ...........
458.63125..........................  ......do..............          28 
458.63750..........................  ......do..............          24 
458.64375..........................  ......do..............          28 
458.650............................  ......do..............          12 
458.65625..........................  ......do..............      12, 28 
458.66250..........................  ......do..............      12, 24 
458.66875..........................  ......do..............      12, 28 
458.675............................  ......do..............  ...........
458.68125..........................  ......do..............          28 
458.68750..........................  ......do..............          24 
458.69375..........................  ......do..............          28 
458.700............................  ......do..............          12 
458.70625..........................  ......do..............      12, 28 
458.71250..........................  ......do..............      12, 24 
458.71875..........................  ......do..............      12, 28 
458.725............................  ......do..............  ...........
458.73125..........................  ......do..............          28 
458.73750..........................  ......do..............          24 
458.74375..........................  ......do..............          28 
458.750............................  ......do..............          12 
458.75625..........................  ......do..............      12, 28 
458.76250..........................  ......do..............      12, 24 
458.76875..........................  ......do..............      12, 28 
458.775............................  ......do..............  ...........
458.78125..........................  ......do..............          28 
458.78750..........................  ......do..............          24 
458.79375..........................  ......do..............          28 
458.800............................  ......do..............          12 
458.80625..........................  ......do..............      12, 28 
458.81250..........................  ......do..............      12, 24 
458.81875..........................  ......do..............      12, 28 
458.825............................  ......do..............  ...........
458.83125..........................  ......do..............          28 
458.83750..........................  ......do..............          24 
458.84375..........................  ......do..............          28 
458.850............................  ......do..............          12 
458.85625..........................  ......do..............      12, 28 
458.86250..........................  ......do..............      12, 24 
458.86875..........................  ......do..............      12, 28 
458.875............................  ......do..............  ...........
458.88125..........................  ......do..............          28 
458.88750..........................  ......do..............          24 
458.89375..........................  ......do..............          28 
458.900............................  ......do..............          12 
458.90625..........................  ......do..............      12, 28 
458.91250..........................  ......do..............      12, 24 
458.91875..........................  ......do..............      12, 28 
458.925............................  ......do..............  ...........
458.93125..........................  ......do..............          28 
458.93750..........................  ......do..............          24 
458.94375..........................  ......do..............          28 
458.950............................  ......do..............          12 
458.95625..........................  ......do..............      12, 28 
458.96250..........................  ......do..............      12, 24 
458.96875..........................  ......do..............      12, 28 
458.975............................  ......do..............  ...........
458.98125..........................  ......do..............          28 
458.98750..........................  ......do..............          24 
458.99375..........................  ......do..............          28 
470 to 512.........................  Base or mobile........          14 
806 to 824.........................  Mobile................          15 
851 to 869.........................  Base or mobile........          15 
928 and above......................  Operational-fixed.....          16 
929-930............................  Base only.............          26 
1427 to 1435.......................  Operational fixed,              17 
                                      base or mobile.                   
2450 to 2500.......................  Base or mobile........          18 
10,550 to 10,680*..................  ......do..............  ...........
------------------------------------------------------------------------
* The frequencies in the band 10.55-10.68 GHz are available for Digital 
  Termination Systems and for associated internodal links in the Point- 
  to-Point Microwave Radio Service. No new licenses will be issued under
  this subpart but current licenses will be renewed.                    

    (c) Explanation of assignment limitations appearing in the frequency 
table of paragraph (b) of this section:
    (1) This frequency is shared with the Special Emergency Radio 
Services and is available for assignment to the official state guard or 
comparable organization of a State, territory, possession, or the 
District of Columbia which is shown to be duly created by law and 
subject to the control of the highest official of the governmental 
entity involved, and may be used for emergency communications and for 
essential communications related to training and maintenance of an 
efficient organization. In addition to base and mobile stations, this 
frequency may be assigned to fixed stations on a secondary basis to base 
or mobile stations. Upon a showing of need, the use of a second 
frequency in the band 2505-3500 kHz may be made available to these 
organizations through appropriate arrangements with Government agencies 
for restricted area use on a shared basis with maximum power output, 
emission, and hours of operation determined on the basis of the 
technical conditions involved in using the selected frequency in the 
particular area.
    (2) This frequency is shared with the Police Radio Service.
    (3) The maximum output power of any transmitter authorized to 
operate on this frequency shall not exceed 2 watts.
    (4) Subpart T contains rules for assignment of frequencies in the 
220-222 MHz band.
    (5) This frequency is not available for assignment in this service 
in Puerto Rico or the Virgin Islands.
    (6) Assignment and use of frequencies in the band 72-76 MHz are 
governed by Sec. 90.257 for operational-fixed stations and by 
Sec. 90.241 for emergency call box operations. Specific frequencies are 
listed at Sec. 90.257(a)(1).
    (7) The maximum power output of the transmitter may not exceed 50 
watts for fixed stations and 1 watt for mobile stations. A1A, A1D, A2B, 
A2D, F1B, F1D, F2D, G1B, G1D, G2B, or G2D emission may be authorized.

[[Page 279]]

    (8) For FM transmitters, the sum of the highest modulating frequency 
in hertz and the amount of the frequency deviation or swing in hertz may 
not exceed 1700 Hz and the maximum deviation may not exceed 1.2 kHz. For 
AM transmitters, the highest modulating frequency may not exceed 1200 
Hz. The carrier frequency must be maintained within .0005 percent of the 
center of the frequency band, and the authorized bandwidth may not 
exceed 3 kHz.
    (9) The maximum effective radiated power (ERP) may not exceed 20 
watts for fixed stations and 2 watts for mobile stations. The height of 
the antenna system may not exceed 15.24 meters (50 ft.) above ground. 
All such operation is on a secondary basis to adjacent channel land 
mobile operations.
    (10) The requirements for secondary fixed use of frequencies in this 
band are set forth in Sec. 90.261.
    (11) This frequency is available for systems first licensed prior to 
March 31, 1980, for radio call box communications related to safety on 
highways in accordance with the provisions of Sec. 90.241(c). No new 
systems will be authorized of this nature, but systems authorized prior 
to March 31, 1980 may be modified, expanded, and renewed. Also, 
effective April 2, 1993, this frequency is shared with EMRS systems in 
accordance with Sec. 90.27.
    (12) This frequency is available in this service on a shared basis 
with all other Public-Safety Radio Services.
    (13) Available for medical services mobile operations in the 
Emergency Medical Radio Service in accordance with Sec. 90.27(c)(22).
    (14) Subpart L contains rules for assignment of frequencies in the 
470-512 MHz band.
    (15) Subpart S contains rules for assignment of frequencies in the 
806-824 MHz and 851-869 MHz bands.
    (16) Assignment of frequencies above 928 MHz for operational-fixed 
stations is governed by part 94 of this chapter.
    (17) This frequency band is available to stations in this service 
subject to the provisions of Sec. 90.259.
    (18) Available only on a shared basis with stations in other 
services, and subject to no protection from interference due to the 
operation of industrial, scientific, or medical (ISM) devices. In the 
2483.5-2500 MHz band, no applications for new stations or modification 
to existing stations to increase the number of transmitters will be 
accepted. Existing licensees as of July 25, 1985, or on a subsequent 
date following as a result of submitting an application for license on 
or before July 25, 1985, are grandfathered and their operation is co-
primary with the Radiodetermination Satellite Service.
    (19) Use of this frequency is limited to stations located at least 
120.7 km (75 miles) from the center of any urbanized area of 200,000 or 
more population (U.S. Census of Population 1970). Operation is on a 
secondary basis to that of the Power Radio Service.
    (20) For FM transmitters, the sum of the highest modulating 
frequency in Hertz and the amount of the frequency deviation or swing in 
Hertz may not exceed 2800 Hz and the maximum deviation may not exceed 
2.5 kHz. For AM transmitters, the highest modulation frequency may not 
exceed 2000 Hz. The carrier frequency must be maintained within .0005 
percent of the center of the frequency band, and the authorized 
bandwidth may not exceed 6 kHz.
    (21) This frequency is available on a shared basis with the Power, 
Petroleum, Forest Products, Special Industrial, Business, and 
Manufacturers Radio Services for remote control and telemetry 
operations.
    (22) Operational fixed stations must employ directional antennas 
having a front-to-back ratio of at least 20 dB. Omnidirectional antennas 
having unity gain may be employed for stations communicating with at 
least three receiving locations separated by 160 deg. of azimuth.
    (23) This frequency is available for use by Travelers' Information 
Stations in accordance with Sec. 90.242.
    (24) This frequency is not available in the 150-170 MHz band until 
August 18, 1996. This frequency will be assigned with an authorized 
bandwidth not to exceed 11.25 kHz. In the 450-470 MHz band, secondary 
telemetry operations pursuant to Sec. 90.238(e) will be authorized on 
this frequency.
    (25) Only the central governments of the fifty individual States, 
the District of Columbia, and the insular areas of the Commonwealth of 
the Northern Mariana Islands, the Commonwealth of Puerto Rico, and the 
unincorporated territories of American Samoa, Guam and the United States 
Virgin Islands are eligible to be licensed to use this spectrum, and 
then only for disaster communications purposes. Licensees may not use 
this spectrum to provide operational communications circuits. See also, 
Sec. 90.264.
    (26) Frequencies in this band are available only for one-way paging 
operations in accordance with Sec. 90.494.
    (27) Frequencies in this band will be assigned for low power 
wireless microphones in accordance with the provisions of Sec. 90.265.
    (28) This frequency is not available until August 18, 1996. After 
August 18, 1996 this frequency will be assigned with an authorized 
bandwidth not to exceed 6 kHz.
    (29) Assignment of frequencies in this band are subject to the 
provisions of Sec. 90.173.
    (30) This frequency is available for systems first licensed prior to 
August 18, 1995. No new systems will be authorized after August 18, 
1995, but prior authorized systems may be modified, expanded, and 
renewed.
    (31) Licensees as of August 18, 1995 who operate systems that are 
2.5 kHz removed from

[[Page 280]]

regularly assignable frequencies may continue to operate on a secondary, 
non-interference basis after August 1, 2003.
    (d) Additional frequencies available. In addition to the frequencies 
shown in the frequency table of this section, the following frequencies 
are available in this service. (See also Sec. 90.253.)
    (1) Substitution of frequencies available below 25 MHz may be made 
in accordance with the provisions of Sec. 90.263.
    (2) [Reserved]
    (3) Frequencies in the band 73.0-74.6 MHz may be assigned to 
stations authorized their use on or before December 1, 1961, but no new 
stations will be authorized in this band, nor will expansion of existing 
systems be permitted. See also Sec. 90.257.
    (4) The frequency bands 31.99 to 32.00 MHz, 33.00 to 33.01 MHz, 
33.99 to 34.00 MHz, 37.93 to 38.00 MHz, 39.00 to 39.01 MHz, 39.99 to 
40.00 MHz and 42.00 to 42.01 MHz, are available for assignment for 
developmental operation subject to the provisions of subpart Q.
    (5) Frequencies in the 421-430 MHz band are available in the 
Detroit, Cleveland, and Buffalo areas in accordance with the rules in 
Secs. 90.273 through 90.281.
    (e) Limitation on number of frequencies assignable. Normally only 
two frequencies or pairs of frequencies in the paired frequency mode of 
operation will be assigned for mobile service operations by a single 
applicant in a given area. The assignment of an additional frequency or 
pair of frequencies will be made only upon a satisfactory showing of 
need, except that:
    (1) Additional frequencies above 25 MHz may be assigned in 
connection with the operation of mobile repeaters in accordance with 
Sec. 90.247 notwithstanding this limitation.
    (2) The frequency 39.06 MHz may be assigned notwithstanding this 
limitation.
    (3) Frequencies in the 25-50 MHz, 150-170 MHz, 450-512 MHz and 902-
928 MHz bands may be assigned for the operation of Location and 
Monitoring Service (LMS) systems in accordance with the provisions of 
subpart M of this part, notwithstanding this limitation.
    (4) A licensee of a radio station in this service may operate radio 
units for the purpose of determining distance, direction, speed, or 
position by means of a radiolocation device on any frequency available 
for radiolocation purposes without specific authorization from the 
Commission, provided type accepted equipment or equipment authorized 
pursuant to Sec. 90.203(b) (4) and (5) is used and all other rule 
requirements are satisfied.

(Secs. 4, 303, 307, 48 Stat., as amended, 1066, 1082, 1083; 47 U.S.C. 
154, 303, 307; secs. 4(i) and 303(r), Communications Act of 1934, as 
amended, Secs. 0.131 and 0.331 of the Commission's Rules and 5 U.S.C. 
553 (b)(3)(B) and (d)())
[4 3 FR 54791 , Nov. 22, 1978]

    Editorial Note:  For Federal Register citations affecting 
Sec. 90.17, see the List of CFR Sections Affected in the Finding Aids 
section of this volume.


Goto Section: 90.16 | 90.19

Goto Year: 1996 | 1998
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