Good spot. Looks like the relevant info for us is below. Now, here's hoping there's less to listen to this year than in recent years!
National Air Guard Frequency (168.6250 MHz)
A National Interagency Air Guard frequency for aircraft will be used for emergency aviation communications. Continuous monitoring of this frequency in narrowband mode is mandatory by agency dispatch centers. Transmission on this frequency must include the Continuous Tone Coded Squelch System 7 (CTCSS) tone of 110.9 Hz.
This frequency, 168.6250 MHz is restricted to the following use:
• Air-to-air emergency contact and coordination;
• Ground-to-air emergency contact; and
• Initial call, recall, and re-direction of aircraft when no other contact 13 frequency is available.
National Flight Following Frequency (168.6500 MHz)
The National Flight Following Frequency is used to monitor interagency and contract aircraft. This frequency is used for flight following and official aircraft 18 flying point to point; it is not to be used during mission flights or incident operations.
All dispatch centers/offices will monitor the national fight following frequency at all times. A CTCSS tone of 110.9 must be placed on the transmitter and receiver of the National Flight Following frequency.
This frequency 168.6500 MHz is restricted to the following use:
• Flight following, dispatch, and/or re-direction of aircraft;
• Air-to-ground and ground-to-air administrative traffic; and
• Not authorized for ground-to-ground traffic.
National Interagency Air Tactics Frequencies (166.6750 MHz, 167.9500 31 MHz, 169.1500 MHz, 169.2000 MHz, 170.0000 MHz)
These frequencies are used to support air-to-air or ground-to-air communications on incidents west of the 95th meridian. These frequencies shall be used for air-to-air and ground-to-air communications only. They are not for use as ground tactical operational frequencies.
Transmitter power output of radios installed in aircraft utilizing these frequencies shall be limited to 10 watts. Use of these frequencies in base stations and repeaters is prohibited.
These frequencies will be assigned by the NIFC CDO or in coordination with the local unit if a NTIA-RFA is in effect.
National Interagency Airtanker Base Frequency (123.9750 MHz)
This frequency is assigned by the FAA to all airtanker bases (unless otherwise notified) for exclusive use. Use of this frequency is restricted to a radius of 40 nautical miles and 10,000 feet MSL from the coordinates of the airtanker base. No other use is authorized.
Smokejumper and Rappel/RADS Air to Ground Frequency (168.550 MHz)
BLM and USFS Smokejumpers have been granted exclusive use of primary National Air to Ground tactical frequency 168.550.
This frequency is also granted for use, with a separate transmit and receive tone, as a secondary/backup frequency for the BLM and USFS Rappel/Rope Assisted Delivery System (RADS) aerial delivery operations if the local air to ground tactical frequency is being used for initial attack operations and use of that local frequency could cause interference issues.
Use of this frequency for other than the delivery of aerial firefighters is prohibited. This frequency must be toned (CTCSS, transmit and receive) for Smokejumper and Rappel/RADS crews to ensure that interference issues are avoided. Smokejumpers will use tone 123.0 and Rappel/RADS crews will use tone 110.9.
Government-wide Area Common User Frequencies (163.1000 MHz, 23 168.3500 MHz)
These frequencies are used on a non-interference basis and are not exclusive to any user. These frequencies are not to be used for air-to-ground operations and are prohibited by DOI and USDA from use as a frequency during operations involving the protection of life and property.
• NOTE: When traveling between incidents, be sure to monitor for incident radio traffic in the area before using these frequencies.
National Interagency Fire Tactical Frequencies( 168.0500 MHz, 168.200 32 MHz, 168.6000 MHz, 168.2500 MHz, 166.7250 MHz, 166.7750 MHz)
These frequencies are used to support ground tactical operations (line of sight) on incidents.
They are not authorized for:
• Air to air communications;
• Air to ground communications;
• Mobile radios with more than 5 watts output power;
• Base stations; or
• Repeater frequencies.
Use of these frequencies will be coordinated between the COML and the NIFC CDO/COMC. Power output is limited to 5 watts or less.