47 C.F.R. § 80.371
Public correspondence frequencies.
Cite as 47 C.F.R. § 80.371 (2026)
This section describes the radiotelephony working frequencies assignable to ship and public coast stations.
(a)
Working frequencies in the 2000-4000 kHz band.
The following table describes the working carrier frequency pairs in the 2000-4000 kHz band.
Working frequency pairs in the 2000-4000 kHz band
Region
Carrier frequency (kHz)
Ship transmit
Coast transmit
East Coast:
2031.5
2490.0
2118.0
1
2514.0
2126.0
2522.0
2142.0
2538.0
2166.0
2558.0
2198.0
2590.0
2366.0
2450.0
2382.0
5
2482.0
2390.0
2566.0
2400.0
2400.0
2406.0
2442.0
2406.0
4
2506.0
West Coast:
2003.0
2450.0
2009.0
2442.0
2009.0
2566.0
2031.5
2566.0
2126.0
2522.0
2206.0
2598.0
2382.0
2466.0
2406.0
2506.0
2430.0
5
2482.0
Gulf Coast:
2009.0
2466.0
2134.0
2530.0
2142.0
2538.0
1
2158.0
1
2550.0
2166.0
2558.0
2206.0
2598.0
2366.0
2450.0
2382.0
5
2482.0
2430.0
2572.0
2458.0
2506.0
Great Lakes
2
:
2118.0
2514.0
2158.0
2550.0
2206.0
2582.0
Alaska
2131.0
5
2309.0
2134.0
2312.0
2237.0
2397.0
2240.0
2400.0
Hawaii
2134.0
2530.0
Caribbean:
2009.0
2506.0
3
2086.0
2585.0
2134.0
2530.0
Guam
2009.0
2506.0
1
Unlimited hours of use from December 15 to April 1 and day only from April 1 to December 15. Harmful interference must not be caused to any station in the Great Lakes region.
2
In the Great Lakes region 2206 kHz is not available for transmission to U.S. ships except in the case of distress. U.S. coast stations in the Great Lakes area may use 2514, 2550 and 2582 kHz on a shared basis with coast stations of Canada. Except in the case of distress, the frequency 2550 kHz must not be used for transmission to ship stations of Canada since the associated ship station transmit frequency 2158 kHz is not available to Canadian ship stations for transmission and 2582 kHz must not be used for public correspondence transmissions to U.S. ship stations since the associated ship transmit frequency 2206 kHz is not available to U.S. ship stations for transmissions except in the case of distress.
3
Limited to a peak envelope power of 150 watts.
4
Harmful interference must not be caused to any coast station in the Caribbean region.
5
But see
section 80.373(c)(3) of this chapter.
(b)
Working frequencies in the 4000-27500 kHz band.
This paragraph describes the working carrier frequencies in the 4000-27500 kHz band. With respect to frequencies that are assignable in more than one geographical area, once the frequency is assigned to one licensee, any subsequent license will be authorized on a secondary, non-interference basis with respect to the incumbent license's existing operation. If the first licensee later seeks authorization to operate in an additional geographic area, such authorization will be on a secondary, non-interference basis to other co-channel licensees.
(1) The following table specifies the carrier frequencies available for assignment to public coast stations. The paired ship frequencies are available for use by authorized ship stations. The specific frequency assignment available to public coast stations for a particular geographic area is indicated by an “x” under the appropriate column. The allotment areas are in accordance with the “Standard Defined Areas” as identified in the International Radio Regulations, Appendix 25 Planning System, and indicated in the preface to the International Frequency List (IFL).
Working Carrier Frequency Pairs in the 4000-27500 kHz Band
Channel
Ship transmit
Coast transmit
USA-E
USA-W
USA-S
USA-C
VIR
HWA
ALS
PTR
GUM
401
4065
4357
x
x
x
x
403
4071
4363
x
x
x
x
x
x
404
4074
4366
x
x
x
x
405
4077
4369
x
x
x
x
x
x
409
4089
4381
x
x
x
x
410
4092
4384
x
x
411
4095
4387
x
x
x
412
4098
4390
x
x
x
414
4104
4396
x
x
x
x
416
4110
4402
x
x
x
x
417
4113
4405
x
x
x
x
418
4116
4408
x
x
419
4119
4411
x
x
x
x
x
422
4128
4420
x
x
x
423
4131
4423
x
x
x
x
x
424
4134
4426
x
427
4143
4435
x
x
x
x
x
x
x
428
4060
4351
x
604
6209
6510
x
x
x
x
x
x
x
x
605
6212
6513
x
607
6218
6519
x
802
8198
8722
x
x
x
x
803
8201
8725
x
804
8204
8728
x
x
x
805
8207
8731
x
x
x
807
8213
8737
x
808
8216
8740
x
x
x
x
x
809
8219
8743
x
x
810
8222
8746
x
x
x
811
8225
8749
x
x
x
814
8234
8758
x
x
x
x
x
x
815
8237
8761
x
x
x
817
8243
8767
x
819
8249
8773
x
822
8258
8782
x
x
x
824
8264
8788
x
x
x
825
8267
8791
x
x
x
826
8270
8794
x
x
x
829
8279
8803
x
x
x
x
830
8282
8806
x
x
831
8285
8809
x
x
x
836
8113
8713
x
837
8128
8716
x
1201
12230
13077
x
x
x
1202
12233
13080
x
x
x
x
1203
12236
13083
x
x
x
x
x
x
1206
12245
13092
x
x
x
1208
12251
13098
x
x
1209
12254
13101
x
x
x
x
1210
12257
13104
x
x
x
x
1211
12260
13107
x
x
x
x
x
1212
12263
13110
x
x
x
x
x
1215
12272
13119
x
x
x
1217
12278
13125
x
1222
12293
13140
x
1223
12296
13143
x
x
x
x
1225
12302
13149
x
x
1226
12305
13152
x
x
x
1228
12311
13158
x
x
x
1229
12314
13161
x
1230
12317
13164
x
x
x
x
1233
12326
13173
x
1234
12329
13176
x
x
x
x
1235
12232
13179
x
1236
12335
13182
x
1237
12338
13185
x
x
x
x
1601
16360
17242
x
x
x
x
1602
16363
17245
x
x
x
1603
16366
17248
x
x
x
x
1605
16372
17254
x
x
1607
16378
17260
x
x
x
x
1609
16384
17266
x
x
x
1610
16387
17269
x
x
x
1611
16390
17272
x
x
x
1616
16405
17287
x
x
x
x
x
1620
16417
17299
x
x
1624
16429
17311
x
x
x
1626
16435
17317
x
1631
16450
17332
x
1632
16453
17335
x
x
x
x
1641
16480
17362
x
x
x
1642
16483
17365
x
x
x
x
x
x
x
x
1643
16486
17368
x
1644
16489
17371
x
x
x
x
x
x
1645
16492
17374
x
1646
16495
17377
x
1647
16498
17380
x
x
x
x
x
1648
16501
17383
x
x
x
x
x
x
1801
18780
19755
x
x
x
x
x
x
x
x
1802
18783
19758
x
x
x
x
x
1803
18786
19761
x
x
x
x
x
x
x
1804
18789
19764
x
x
x
x
1805
18792
19767
x
x
1807
18798
19773
x
1808
18801
19776
x
x
x
x
x
x
x
x
2201
22000
22696
x
x
x
x
2205
22012
22708
x
x
x
2210
22027
22723
x
2214
22039
22735
x
x
x
2215
22042
22738
x
x
x
2216
22045
22741
x
x
x
2222
22063
22759
x
2223
22066
22762
x
x
x
x
x
x
2227
22078
22774
x
x
x
2228
22081
22777
x
x
2231
22090
22786
x
x
x
x
2236
22105
22801
x
x
2237
22108
22804
x
x
x
2241
22120
22816
x
x
x
x
x
x
x
x
2242
22123
22819
x
2243
22126
22822
x
x
x
x
x
x
x
x
2244
22129
22825
x
x
x
2245
22132
22828
x
x
x
x
2246
22135
22831
x
2247
22138
22834
x
x
x
x
x
x
x
2501
25070
26145
x
x
x
x
x
x
2502
25073
26148
x
x
x
x
x
x
x
x
2503
25076
26151
x
2504
25079
26154
x
x
x
x
x
x
x
x
(2) The following table specifies the non-paired carrier frequencies that are available for assignment to public coast stations for simplex operations. These frequencies are available for use by authorized ship stations for transmissions to coast stations (simplex operations). Assignments on these frequencies must accept interference. They are shared with government users and are considered “common use” frequencies under the international Radio Regulations. They cannot be notified for inclusion in the Master International Frequency Register, which provides stations with interference protection, but may be listed in the international List of Coast Stations. (
See
Radio Regulation No. 1220 and Recommendation 304.)
Public Correspondence Simplex
[Non-paired radiotelephony frequencies in the 4000-27500 kHz Band
1
Carrier Frequencies (kHz)]
16537
2
18825
22174
25100
16540
18828
22177
25103
18831
25106
18834
25109
18837
25112
1
Coast stations limited to a maximum transmitter power of 1 kW (PEP).
2
The alternative carrier frequency 16537 kHz may be used by ship stations and coast stations for calling on a simplex basis, provided that the peak envelope power does not exceed 1 kW.
(c)
Working frequencies in the marine VHF 156-162 MHz band.
(1)(i) The frequency pairs listed in this paragraph are available for assignment to public coast stations for communications with ship stations and units on land.
Working Carrier Frequency Pairs in the 156-162 MHz Band
1
Channel designator
Carrier Frequency (MHz)
Ship transmit
Coast transmit
24
157.200
161.800
84
157.225
161.825
25
5
157.250
161.850
85
2
157.275
161.875
26
157.300
161.900
86
157.325
161.925
27
157.350
161.950
87
3
157.375
161.975
28
157.400
162.000
88
4
157.425
162.025
1
For special assignment of frequencies in this band in certain areas of Washington State, the Great Lakes and the east coast of the United States pursuant to arrangements between the United States and Canada, see subpart B of this part.
2
The frequency pair 157.275/161.875 MHz is available on a primary basis to ship and public coast stations. In Alaska it is also available on a secondary basis to private mobile repeater stations.
3
The frequency 161.975 MHz is available only for Automatic Identification System communications. In VPCSAs 10-42, site-based stations licensed to operate on frequency 161.975 MHz prior to March 2, 2009 may continue to operate on a co-primary basis on that frequency until March 2, 2024.
4
The frequency 162.025 MHz is available only for Automatic Identification System communications. One hundred twenty kilometers (75 miles) from the United States/Canada border, the frequency 157.425 MHz is available for intership and commercial communications. Outside the Puget Sound area and its approaches and the Great Lakes, 157.425 MHz is available for communications between commercial fishing vessels and associated aircraft while engaged in commercial fishing activities.
5
In VPCSAs 10-42, the working carrier frequency pair 157.250/161.850 MHz (Channel 25) is not available for assignment under part 80.
(ii) Service areas in the marine VHF 156-162 MHz band are VHF Public Coast Service Areas (VPCSAs). As listed in the table in this paragraph (c)(1)(ii), VPCSAs are based on, and composed of one or more of, the U.S. Department of Commerce's 172 Economic Areas (EAs).
See
60 FR 13114 (March 10, 1995). In addition, the Commission shall treat Guam and the Northern Mariana Islands, Puerto Rico and the United States Virgin Islands, American Samoa, and the Gulf of Mexico as EA-like areas, and has assigned them EA numbers 173-176, respectively. Maps of the EAs and VPCSAs are available for public inspection through the Federal Communications Commission's Reference Information Center, Tel: 1-888-225-5322. In addition to the EAs listed in the table in this paragraph (c)(1)(ii), each VPCSA also includes the adjacent waters under the jurisdiction of the United States. In VPCSAs 10-42, the working carrier frequency pair 157.250 MHz/161.850 MHz (Channel 25) is not available for assignment under this part.
VHF Public coast station areas (VPCSAs)
VPCSAs
EAs
1 (Northern Atlantic)
1-5, 10
2 (Mid-Atlantic)
9, 11-23, 25, 42, 46
3 (Southern Atlantic)
24, 26-34, 37, 38, 40, 41, 174
4 (Mississippi River)
34, 36, 39, 43-45, 47-53, 67-107, 113, 116-120, 122-125, 127, 130-134, 176
5 (Great Lakes)
6-8, 54-66, 108, 109
6 (Southern Pacific)
160-165
7 (Northern Pacific)
147, 166-170
8 (Hawaii)
172, 173, 175
9 (Alaska)
171
10 (Grand Forks)
110
11 (Minot)
111
12 (Bismarck)
112
13 (Aberdeen)
114
14 (Rapid City)
115
15 (North Platte)
121
16 (Western Oklahoma)
126
17 (Abilene)
128
18 (San Angelo)
129
19 (Odessa-Midland)
135
20 (Hobbs)
136
21 (Lubbock)
137
22 (Amarillo)
138
23 (Santa Fe)
139
24 (Pueblo)
140
25 (Denver-Boulder-Greeley)
141
26 (Scottsbluff)
142
27 (Casper)
143
28 (Billings)
144
29 (Great Falls)
145
30 (Missoula)
146
31 (Idaho Falls)
148
32 (Twin Falls)
149
33 (Boise City)
150
34 (Reno)
151
35 (Salt Lake City-Ogden)
152
36 (Las Vegas)
153
37 (Flagstaff)
154
38 (Farmington)
155
39 (Albuquerque)
156
40 (El Paso)
157
41 (Phoenix-Mesa)
158
42 (Tucson)
159
(iii) Subject to paragraph (c)(3) of this section, each licensee may also operate on 12.5 kHz offset frequencies in areas where the licensee is authorized on both frequencies adjacent to the offset frequency, and in areas where the licensee on the other side of the offset frequency consents to the licensee's use of the adjacent offset frequency. Coordination with Canada is required for offset operations under any circumstance in which operations on either adjoining 25 kHz channel would require such coordination.
See
§ 80.57 of this part.
(2) Any recovered channel pairs will revert automatically to the holder of the VPCSA license within which such channels are included, except the channel pairs listed in the table in paragraph (c)(1)(i) of this section. Those channel pairs, and any channel pairs recovered where there is no VPCSA licensee, will be retained by the Commission for future licensing.
(e) Canada/U.S.A. channeling arrangement frequencies. The VHF frequencies assignable to ship and coast stations in the State of Washington and their usage limitations pursuant to the Canada/U.S.A. channeling arrangement are described in subpart B of this part.
(4) Subject to the requirements of § 1.924 of this chapter and § 80.21, each VPCSA licensee may place stations anywhere within its region without obtaining prior Commission approval provided:
(i) It provides to co-channel coast station incumbent licensees, and incumbent Private Land Mobile Radio licensees authorized under part 90 of this chapter on a primary basis, protection as defined in subpart P of this part. VPCSA licensees that share a common border may either distribute the available frequencies upon mutual agreement or request that the Commission assign frequencies along the common border.
(ii) The locations and/or technical parameters of the transmitters are such that individual coordination of the channel assignment(s) with a foreign administration, under applicable international agreements and rules in this part, is not required.
(iii) For any construction or alteration that would exceed the requirements of § 17.7 of this chapter, licensees must notify the appropriate Regional Office of the Federal Aviation Administration (FAA Form 7460-1) and file a request for antenna height clearance and obstruction marking and lighting specifications (FCC Form 854) with the FCC, Attn: Information Processing Branch, 1270 Fairfield Rd., Gettysburg, PA 17325-7245.
(iv) The transmitters must not have a significant environmental effect as defined by §§ 1.1301 through 1.1319 of this chapter.
(d)
Working frequencies in the Mississippi River System.
The Mississippi River System includes the Mississippi River and connecting navigable waters other than the Great Lakes. The following simplex frequencies are available for assignment to public coast stations serving the Mississippi River System for radiotelephony communications. These simplex frequencies also are available for use by authorized ship stations within communication service range, whether or not the ship is operating within the confines of the Mississippi River System.
Mississippi River System Working Frequencies; Carrier Frequencies (kHz)
2086
1
4065
6209
8201
12362
16543
2782
4089
6212
8213
12365
16546
4116
6510
8725
4408
6513
8737
1
Limited to a maximum transmitter output of 150 watts (PEP).
(e)
Canada/U.S.A. channeling arrangement frequencies.
The VHF frequencies assignable to ship and coast stations in the State of washington and their usage limitations purusant to the Canada/U.S.A. channeling arrangement are described in subpart B of this part.
[51 FR 31213, Sept. 2, 1986]
Editorial Note:
For
Federal Register
citations affecting § 80.371, see the List of CFR Sections Affected, which appears in the Finding Aids section of the printed volume and at
www.govinfo.gov.
- Cross-references to the CFR
- 1.13011.92417.780.2180.37180.57