Anchorage Enlightening
Steve,Bruce is right. Regarding being at anchor -USCG Rule 30(b) states:"A vessel of less than 50 meters may exhibit an all-round white light where it can best be seen instead of the lights prescribed in paragraph (a) of this rule."But if your boat is less than 7 meters, Rule 30(e) permits no lights under certain conditions:"A vessel of less than 7 meters in length, when at anchor, not in or near a narrow channel,fairway,anchorage,or where other vessels normally navigate,shall not be required to exhibit the lights and shape prescribed in paragraphs (a) and (b) of this Rule."Rule 21(e) definition:"'All-round' light means a light showing an unbroken light over an arc of horizon of 360 degrees."Rule 22(b) and (c) require the all-round light be visible from 2 miles. There is no height restriction as long as the light meets the 2 mile visibility requirement.USCG rules can be found on the related link.For a Florida Fish and Wildlife Conservation Commission (FWC) approved online safety course, go here:http://www.boat-ed.com/Happy sails,MArk