When can routine communications be resumed when radio silence has been imposed

If, in the Master's opinion, communications on that frequency will interfere with emergency communications

After determining that geographic distance from the distress situation will prohibit any other signal from interfering with emergency communications

Routine communications can resume after the Rescue Coordination Center transmits a message on the frequency or channel being used for emergency communications stating that such traffic has concluded.

After determining that the frequency or channel appears to be no longer in use

When can routine communications be resumed...