At what LOA is the mast head tri-color not satisfactory? Some of the
info I have says 12 meters, others say 20 meters. The col regs at
http://www.slp.wa.gov.au, Rule 25, says its 20m, but I am wondering if
its up to date.

I only have the tri-color and anchor light (13.2m), I would like to be
sure side lights and a stern light are not required. Everyone else
seem to have them.

Regards