comdtinst m2400.1f - US Coast Guard Response Boat-Medium

E. On-Scene Search and Rescue Frequenices.
1. On-Scene SAR. On-Scene SAR frequencies are for
communications among aircraft and surface ships (including
submarines) engaged in and at the scene of SAR. These
frequencies are assigned as working frequencies and normally
shall be used as the primary search and rescue frequencies in
their particular frequency bands. In addition to the
frequencies listed in Annex J for this purpose the
appropriate Coast Guard common, District working and
air/ground frequencies may be used at the scene of SAR.
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