Create a group quiz — IALACOLREG

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Mixed (everything)Random mix from every topicAll COLREGAll 38 COLREG rules — text + visual + audioAll IALA buoyageLateral, cardinal, isolated-danger, safe-water, specialAll lights & shapesRules 20–31 + light-recognition stimuliAll sound signalsRules 32–37 + sound-recognition stimuliAll GMDSSAll 15 GMDSS modules

By topic

COLREG RulesInternational Regulations for Preventing Collisions at SeaIALA BuoyageMaritime buoyage system and navigation marksGMDSSGlobal Maritime Distress and Safety System — 15 study modules for the General …

By single rule

ApplicationCOLREG applies to all vessels on the high seas and in connected waters navigab…ResponsibilityNothing in these Rules shall exonerate any vessel from the consequences of neg…General DefinitionsDefines key terms used throughout the COLREGs including vessel, power-driven v…ApplicationRules in Section I apply in any condition of visibility.Look-outEvery vessel shall at all times maintain a proper look-out by sight and hearin…Safe SpeedEvery vessel shall at all times proceed at a safe speed so that proper and eff…Risk of CollisionEvery vessel shall use all available means to determine if risk of collision e…Action to Avoid CollisionAny action to avoid collision shall be positive, made in ample time, and with …Narrow ChannelsA vessel proceeding along the course of a narrow channel shall keep as near to…Traffic Separation SchemesVessels using traffic separation schemes shall proceed in the appropriate traf…ApplicationRules in this Section apply to vessels in sight of one another.Sailing VesselsWhen two sailing vessels approach, the one with wind on port side keeps clear.…OvertakingAny vessel overtaking another shall keep out of the way of the vessel being ov…Head-on SituationWhen two power-driven vessels are meeting head-on, each shall alter course to …Crossing SituationWhen two power-driven vessels are crossing, the vessel which has the other on …Action by Give-way VesselEvery vessel directed to keep out of the way shall take early and substantial …Action by Stand-on VesselThe stand-on vessel shall keep her course and speed, but may take action when …Responsibilities Between VesselsRule 18 sets the basic responsibilities between vessel types. Constrained-by-d…Conduct of Vessels in Restricted VisibilityIn restricted visibility, vessels detected by radar alone must take avoiding a…Application (Lights)Rules concerning lights shall be complied with from sunset to sunrise and duri…Definitions (Lights)Defines masthead light, sidelights, sternlight, towing light, all-round light …Visibility of LightsSpecifies minimum visibility ranges for lights based on vessel length.Power-driven Vessels UnderwayPower-driven vessels underway shall exhibit masthead light(s), sidelights, and…Towing and PushingVessels towing or pushing display additional masthead lights and a yellow towi…Sailing Vessels Underway and Vessels Under OarsSailing vessels show sidelights and sternlight. May optionally show red over g…Fishing VesselsFishing vessels show green over white when trawling, red over white for other …Vessels Not Under Command or Restricted in Ability to ManoeuvreNUC shows two red all-round lights vertically. RAM shows red-white-red all-rou…Vessels Constrained by Their DraughtA vessel constrained by draught may display three all-round red lights in a ve…Pilot VesselsA pilot vessel on duty shows white over red all-round lights at the masthead. …Anchored Vessels and Vessels AgroundAnchored vessels show an all-round white light forward and another aft (lower)…SeaplanesWhere it is impracticable for a seaplane to exhibit lights of the exact charac…Definitions (Sound Signals)Whistle = any Annex III-compliant sound appliance. Short blast ≈ 1 s. Prolonge…Equipment for Sound SignalsWhistle from 12 m, bell added from 20 m, gong added from 100 m — and the gong'…Manoeuvring and Warning SignalsOne short blast means starboard, two means port, three means astern propulsion…Sound Signals in Restricted VisibilityIn restricted visibility, power-driven vessels making way sound one prolonged …Signals to Attract AttentionIf necessary to attract attention, a vessel may make light or sound signals th…Distress SignalsWhen in distress and requiring assistance, vessels shall use the signals descr…ExemptionsVessels which comply with earlier regulations may be exempted from certain req…IALA Lateral Marks (Region A & B)Lateral marks indicate port and starboard sides of channels. Region A: red to …IALA Cardinal MarksCardinal marks indicate the direction of safe water relative to the mark using…IALA Isolated Danger MarksPlaced directly on or above an isolated danger with navigable water all around…IALA Safe Water MarksIndicate navigable water all around. Red and white vertical stripes with a sin…IALA Special MarksYellow marks indicating special areas such as ODAS, traffic separation, milita…IALA Emergency Wreck Marking BuoyBlue and yellow vertical stripes marking new wrecks. Shows alternating blue an…

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