REACT (Raqdio Emergency Associated Citizens Team) are volunteers who monitor channel 9 on CB's and channel 20 on GMRS to report problems by travelers.

Ch Freq  Ch Freq
1 462.5625 8 467.5625
2 462.5875 9 467.5875
3 462.6125 10 467.6125
4 462.6375 11 467.6375
5 462.6625 12 467.6625
6 462.6875 13 467.6875
7 462.7125 14 467.7125
GMRS 2
15 462.550 467.550
16 462.575 467.575
17 462.600 467.600
18 462.625 467.625
19 462.650 467.650
20* 462.675 467.675*
21 462.700 467.700
22 462.725 467.725
1. FRS Channels 1-7 can be used for GMRS (5 w)
2. Second set of GMRS frequencies is for duplex (repeater) operation.

CB Stuff
Channel 9 (27.065 MHz)- Emergency 14 (27.125) & 19 (27.185 MHz) may also be used.
Channel 10-23 - the trucking industry makes good use of CB Radio by constantly using and monitoring specific frequencies, usually those between Channel 9 and Channel 23.
Channel 10 (27.075 MHz) - Used by off-road vehicles on the Rubicon Trail
Channel 4 or 16 - Used by many 4X4 clubs (4x4=16)
Channel 12 used by tri-state 4x4
Channel 19 (27.185) - Most truckers monitor this.
Channel 17 (27.165 MHz) - Used by truckers for North-South routes (I-5) in Calif.
Channel 21 (27.215 MHz)- Used by truckers for North-South routes in some places.

1) 26.965 MHz 9) 27.065 MHz 17) 27.165 MHz 25) 27.245 MHz 33) 27.335 MHz
2) 26.975 MHz 10) 27.075 MHz 18) 27.175 MHz 26) 27.265 MHz 34) 27.345 MHz
3) 26.985 MHz 11) 27.085 MHz 19) 27.185 MHz 27) 27.275 MHz 35) 27.355 MHz
4) 27.005 MHz 12) 27.105 MHz 20) 27.205 MHz 28) 27.285 MHz 36) 27.365 MHz
5) 27.015 MHz 13) 27.115 MHz 21) 27.215 MHz 29) 27.295 MHz 37) 27.375 MHz
6) 27.025 MHz 14) 27.125 MHz 22) 27.225 MHz 30) 27.305 MHz 38) 27.385 MHz
7) 27.035 MHz 15) 27.135 MHz 23) 27.255 MHz 31) 27.315 MHz 39) 27.395 MHz
8) 27.055 MHz 16) 27.155 MHz 24) 27.235 MHz 32) 27.325 MHz 40) 27.405 MHz

Marine:
Chnl Freq Use
6 156.3 Intership Safety
07A 156.35 Commercial
8 156.4 Commercial (Intership only)
9 156.45 Boater Calling. Commercial and Non-Commercial.
10 156.5 Commercial
11 156.55 Commercial. VTS in selected areas.
12 156.6 Port Operations. VTS in selected areas.
13 156.65 Intership Navigation Safety (Bridge-to-bridge). Ships >20m length maintain a listening watch on this channel in US waters.
14 156.7 Port Operations. VTS in selected areas.
15 156.75 Environmental (Receive only). Used by Class C EPIRBs.
16 156.8 International Distress, Safety and Calling. Ships required to carry radio, USCG, and most coast stations maintain a listening watch on this channel.
17 156.85 State Control
18A 156.9 Commercial
19A 156.95 Commercial
20 161.6 Port Operations (duplex)
20A 157 Port Operations
21A 157.05 U.S. Coast Guard only
22A 157.1 Coast Guard Liaison and Maritime Safety Information Broadcasts. Broadcasts announced on channel 16.
23A 157.15 U.S. Coast Guard only
24 161.8 Public Correspondence (Marine Operator)
25 161.85 Public Correspondence (Marine Operator)
26 161.9 Public Correspondence (Marine Operator)
27 161.95 Public Correspondence (Marine Operator)
28 162 Public Correspondence (Marine Operator)
65A 156.275 Port Operations
66A 156.325 Port Operations
67 156.375 Commercial. Used for Bridge-to-bridge communications in lower Mississippi River. Intership only.
68 156.425 Non-Commercial
69 156.475 Non-Commercial
70 156.525 Digital Selective Calling (voice communications not allowed)
71 156.575 Non-Commercial
72 156.625 Non-Commercial (Intership only)
73 156.675 Port Operations
74 156.725 Port Operations
77 156.875 Port Operations (Intership only)
78A 156.925 Non-Commercial
79A 156.975 Commercial. Non-Commercial in Great Lakes only
80A 157.025 Commercial. Non-Commercial in Great Lakes only
81A 157.075 U.S. Government only - Environmental protection operations.
82A 157.125 U.S. Government only
83A 157.175 U.S. Coast Guard only
84 161.825 Public Correspondence (Marine Operator)
85 161.875 Public Correspondence (Marine Operator)
86 161.925 Public Correspondence (Marine Operator)
AIS 1 161.975 Automatic Identification System (AIS)
AIS 2 162.025 Automatic Identification System (AIS)
88A 157.425 Commercial, Intership only.
See: U.S VHF Channels at USCG Navigation Center
VTS - Vessel Traffic System
EPIRB - Emergency Position Indicating Radio Beacon

NOAA Weather Radio Frequencies Channel Frequency (MHz)
WX1 162.550
WX2 162.400
WX3 162.475
WX4 162.425
WX5 162.450
WX6 162.500
WX7 162.525