This is a prime example of too many regulations
. I have red/green, have sailed for 40 years and have 50 000 miles of ocean experience, 20 000 of it single
lights can be determined by patterns/collision danger
by bearings and bouys by shapes. If the afflicted sailor sails
defensively there is no reason to fuss. The day recreational sailors allowed themselves to be regulated is the saddest day in the history
of sailing. All my sailing has been done without any skipper's tickets at all. What ever happened to being responsible for one's own welfare? I say do away with regulations
and restrictions and allow everyone to be adult and responsible for his/her own welfare. To those who dislike the notion of sailing at night with a possible colourblind skipper
in the vicinity, - are YOU not keeping watch?,-are YOU not sailing defensively as you should be? Viva individual freedom. Stick your skipper's tickets where a monkey sticks his nuts. !