Sec.  2.401   Distress messages.

   Each station licensee shall give absolute priority to radiocommunications or
   signals relating to ships or aircraft in distress; shall cease all sending
   on frequencies which will interfere with hearing a radiocommunication or
   signal of distress and except when engaged in answering or aiding the ship
   or aircraft in distress, shall refrain from sending any radiocommunications
   or signals until there is assurance that no interference will be caused with
   the radiocommunications or signals relating thereto; and shall assist the
   ship or aircraft in distress, so far as possible, by complying with its
   instructions.