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>Definitions>Restricted>Visibility Rule 3 (l) Restricted Visibility  Any condition in which visibility is restricted by:  fog mist falling snow heavy rainstorms sandstorms or any other similar causes back to top Royal Fleet Auxiliary in restricted visibility (shows signals for constrained by draft) Royal Fleet Auxiliary in restricted visibility (shows signals for constrained by draft)
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