I am familiar with the USCG requirements for the red and green navigation lights on the bow of a vessel. But, I had a slight disagreement with an individual who states for purposes of night vision, it is okay to surround a pontoon boat with red lights. Seems to me this could create a hazard. Does anyone have link to a USCG reg thats states only ONE red or ONE green light can be visible during hours of reduced visibility. I have been all over the place researching this but can't find the material to support my stance. Any help out there?