For those of you who listen to large federal incidents, primarily wildland fire, but also hurricanes, floods, tornados, large gatherings of people, etc., the National Incident Radio Support Cache Command Channel 6 has new frequencies. They are: 168.4750 repeater output and 165.4000 repeater input. These are for portable repeaters with command channel traffic only, i.e. Division Supervisor level all the way up to the Incident Commander. This change is documented in official ICS publication. Those who can obtain the ICS 205 form (Comm Plan) for incidents should watch for this change. Those with large incidents near them put these frequencies in your large incident/mutual aid bank, system, groups, etc. and then report back here that you heard it. I will make a submission to the database.