ICS 205
Incident Radio Communications Plan
Purpose. The Incident Radio Communications Plan (ICS 205) provides information on all radio frequency or trunked
radio system talkgroup assignments for each operational period. The plan is a summary of information obtained about
available radio frequencies or talkgroups and the assignments of those resources by the Communications Unit Leader for
use by incident responders. Information from the Incident Radio Communications Plan on frequency or talkgroup
assignments is normally placed on the Assignment List (ICS 204).
Preparation. The ICS 205 is prepared by the Communications Unit Leader and given to the Planning Section Chief for
inclusion in the Incident Action Plan.
Distribution. The ICS 205 is duplicated and attached to the Incident Objectives (ICS 202) and given to all recipients as
part of the Incident Action Plan (IAP). All completed original forms must be given to the Documentation Unit. Information
from the ICS 205 is placed on Assignment Lists.
Notes:
• The ICS 205 is used to provide, in one location, information on all radio frequency assignments down to the
Division/Group level for each operational period.
• The ICS 205 serves as part of the IAP.
Block
Block Title Instructions
Enter the name assigned to the incident.
2 Date/Time Prepared
Enter date prepared (month/day/year) and time prepared (using the 24-hour
clock).
3 Operational Period
• Date and Time From
• Date and Time To
Enter the start date (month/day/year) and time (using the 24-hour clock) and
end date and time for the operational period to which the form applies.
4 Basic Radio Channel
Use
Enter the following information about radio channel use:
Zone Group
Channel Number Use at the Communications Unit Leader’s discretion. Channel Number (Ch
#) may equate to the channel number for incident radios that are
programmed or cloned for a specific Communications Plan, or it may be
used just as a reference line number on the ICS 205 document.
Function Enter the Net function each channel or talkgroup will be used for (Command,
Tactical, Ground-to-Air, Air-to-Air, Support, Dispatch).
Channel Name/Trunked
Radio System Talkgroup
Enter the nomenclature or commonly used name for the channel or talk
group such as the National Interoperability Channels which follow DHS
frequency Field Operations Guide (FOG).
Assignment Enter the name of the ICS Branch/Division/Group/Section to which this
channel/talkgroup will be assigned.
RX (Receive) Frequency
(N or W)
Enter the Receive Frequency (RX Freq) as the mobile or portable subscriber
would be programmed using xxx.xxxx out to four decimal places, followed by
an “N” designating narrowband or a “W” designating wideband emissions.
The name of the specific trunked radio system with which the talkgroup is
associated may be entered across all fields on the ICS 205 normally used
for conventional channel programming information.
RX Tone/NAC Enter the Receive Continuous Tone Coded Squelch System (CTCSS)
subaudible tone (RX Tone) or Network Access Code (RX NAC) for the
receive frequency as the mobile or portable subscriber would be
programmed.
