Sail Skills - ColRegs Free Guide to ColRegs (the International Regulations for Preventing Collisions at Sea, the IRPCS or Collision Regs). Guidance covers all aspects with animations, pictures and diagrams. Aimed at small vessel users but suitable for professional mariners. Especially recommended for RYA examination candidates.
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ColRegs Home>ColRegs>Lights & Shapes>Anchored Vessel A vessel at anchor with deck lights lit Available working lights or equivalent: may shall, by a vessel 100m or more in length be used to illuminate decks: A vessel under 50m in length may exhibit a: white all-round light where it may best be seen instead of the lights above but is still required to exhibit a ball forward! A service vessel at anchor - showing ball and all-round lights A vessel at anchor A vessel under 50m in length at anchor A vessel under 7m in length need not exhibit the lights and shape unless: in or near a: narrow channel or fairway or anchorage or where other vessels normally navigate A vessel under 7m in length at anchor A number of small vessels - some less than 7m in length at anchor All these vessels are required to exhibit the shape and light: A number of small vessels - some less than 7m in length at anchor As they are anchored: in or near a: narrow channel or fairway or anchorage or where other vessels normally navigate Any other vessel at anchor shall exhibit, where it can best be seen: in the forepart, a: ball white all-round light at or near the stern, a: white all-round light, lower than the forward light Vessels at anchor engaged in fishing Vessel at anchor restricted in ability to manoeuvre, engaged in dredging or underwater operations, where an obstruction exists Vessels at anchor engaged in fishing (The vessel engaged in trawling is displaying a masthead light - but not sidelights as she is not making way) Vessel at anchor restricted in ability to manoeuvre, engaged in: dredging or underwater operations where an obstruction exists back to top
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