How many flares Must you carry on a boat?
To meet carriage requirements, you must have at least three un-expired flares aboard. You may carry expired flares as back up, but they will not count towards the legal requirement.
What do different colored flares mean?
Color is one of the main distinctions in types of flares. White flares are for signaling in non-emergency circumstances — say, for finishing a race — and red flares are supposed to indicate an emergency. Red flares owe their distinctive color to the presence of strontium nitrate.
Are road flares OK for boats?
Having a road flare on a boat is a danger as it could cause serious burns to anyone trying to hold this type of flare, and if dropped could result in the boat going up in flames. When purchasing marine flares it is best to purchase flares from a local marina so you are assured you are getting up to date marine flares.