1.10.1 In accordance with the Radio Regulations
channel 16 may only be used for distress, urgency and very brief safety
communications and for calling to establish other communications which
should then be conducted on a suitable working channel.
1.10.2 Whenever possible, a working frequency
should be used for calling.
If a working frequency is not available, VHF channel 16 may
be used for calling, provided it is not occupied by a distress and
urgency call/message.
1.10.3 In case of a difficulty in establishing
contact with a ship or a coast station, allow adequate time before
repeating the call. Do not occupy the channel unnecessarily and try
another channel.