When boating if you see a blue and white International Code Flag A what distance away from the displayed flag should be maintained
Rachel Hunter
Published Mar 29, 2026
Vessels not engaged in diving operations should remain at a safe distance away from a displayed flag, preferably at least 200 feet away.
When boating you see a blue-and-white International Code Flag A What does this flag tell you?
Alfa Flag: A blue-and-white International Code Flag A (or Alfa flag), at least 3.3 feet (one meter) high and visible from all directions, must be displayed on vessels on federally controlled waters. This flag indicates that the vessel is involved in a diving activity.
How far away should you be from your dive flag?
Scuba divers or snorkelers must display a diver-down flag that marks their diving area. The flag must be displayed whenever someone is diving below the surface. Vessels should stay as far away from a diver-down flag as is reasonable and prudent for the circumstances. The suggested safe distance is 100 yards.
How far do you stay away from a diver down flag while boating?
All vessels must make reasonable effort to stay at least 100 feet away from a divers-down device within a river, inlet or channel. In open waters, vessels must make reasonable effort to stay 300 feet away. For safety, divers should stay within those same distances of their displayed device.What must you do if you see a vessel showing the International Code of Signals blue-and-white?
If a diving operation takes place from aboard a pleasure craft, Code flag Alpha or flag A (white and blue) from the International Code of signals which means “I have a diver in the water, keep well clear and at low speed” must be displayed.
What do flags mean on a boat?
For example, if you see the A (Alpha) flag, this means “diver down, keep clear.” If you see the W (Whiskey) flag, the boat has a medical emergency and needs help. The combination of the D (Delta) and V (Victor) flags, meanwhile, means “I’m maneuvering with difficulty and require assistance.”
What does a compliance notice show?
The compliance notice states that the vessel complies with the construction requirements when it was built or imported (whichever date was most recent). The notice also shows the maximum number of people that can safely board the vessel. This is also known as a “capacity label.”
What is the problem with using your boats engine to drive it onto a trailer?
NOTE – While many people drive the boat onto the trailer, it isn’t advised. Using the engine to assist trailering erodes the ramp bed, can lead to debris being sucked into the engine, and can cause an accident! Make sure you drain all water from the boat – the bilge, the live well, the trailer lights, etc.Do you need a dive flag?
A dive flag indicates that scuba divers are nearby. In some areas, flying a dive flag while scuba diving is required by law, but in general it’s a good idea for safety reasons. Dive boats fly a flag to let other vessels know that divers are below. You can fly a flag from a dive float you take with you into the water.
What is the best way to avoid overloading your boat?- Stay Below Your Boat’s Max Weight Capacity.
- Do Not Take Extra Passengers on Board.
- Distribute Weight Evenly.
- Avoid Transporting Heavy Loads in Bad Weather.
- Do Not Overpower Your Boat.
What happens to my wet suit when I descend?
You’ll be wearing the amount of weight required to achieve neutral buoyancy at the surface. But as you descend, your wetsuit will compress. This decreases your volume, and results in a loss of buoyancy. To maintain neutral buoyancy, you need to add air to your BCD as you descend.
What are the two types of diver down flags?
There are two types of diver down flags used both nationally and internationally: the diver down flag and the alpha flag. The most commonly used of the two is the diver down flag, which is a red flag with a white diagonal stripe.
What is the quarantine flag?
quarantine flag in American English noun. Nautical. a yellow flag, designating the letter Q in the International Code of Signals: flown by itself to signify that a ship has no disease on board and requests a pratique, or flown with another flag to signify that there is disease on board ship. Also called: yellow flag.
What is a Bravo flag?
The code flag B “Bravo” means ‘I am taking in, or discharging, or carrying dangerous goods. … International Marine Signal Flags are international signals used by ships at sea. They can be used to spellout short messages, or more commonly, used individually.
What color is a distress flag?
The distress flag must be at least 3 x 3 feet with a black square and ball on an orange background. It is accepted as a day signal only and is especially effective in bright sunlight.
What can be found on the boats compliance notice?
The Compliance Notice confirms that the boat has been built according to the construction requirements outlined in the Small Vessel Regulations. The notice must be attached to the helm of the boat, where it can be clearly seen from the operator’s seat.
How do you measure the length of a boat?
Length overall is measured from the tip of the bow in a straight line to the stern of the vessel. Bowsprits; rudders; outboard motors and motor brackets; handles; and other fittings, attachments, and extensions are not included in the measurement.
What does maximum load on a compliance notice refers to?
The maximum load capacity on compliance notice refers to the total weight that the craft can hold in order to navigate safely.
What does a white flag mean on a boat?
A diver down flag, or scuba flag, is a flag used on the water to indicate that there is a diver below. … Internationally, the code flag alfa/alpha, which is white and blue, is used to signal that the vessel has a diver down and other vessels should keep well clear at slow speed.
How do you read a nautical flag?
- A: Alpha – diver down; I am undergoing a speed trial.
- B: Bravo – carrying dangerous cargo.
- C: Charlie – yes (affirmative)
- D: …
- E: Echo – altering course to starboard.
- F: Foxtrot – I am disabled, communicate with me.
- G: Golf – I want a pilot.
- H: Hotel – a pilot on board.
How many feet from a diver down flag must all vessels in open waterways must attempt to stay?
Divers-must make a reasonable effort to stay within 100 feet of a divers-down flag or a buoy within rivers, inlets, or navigation channels and within 300 feet on open water.
When you see a red flag with a white diagonal stripe divers down flag must?
➢ When you see a red flag with a white diagonal stripe, this indicates there are divers or snorkelers in the water. Stay at least 300 feet away when in open water, and slow to idle speed if you must come within 100 feet when in a narrow channel or river.
Do you need a flag to snorkel?
Displaying a Diver Down Flag Snorkelers and divers must display a diver down flag whenever in the water. … The flag’s purpose is to warn nearby boaters of the snorkeler’s presence. Ensure that the flag must be visible from the boat’s highest point from all directions. Remove the flag when not in the water.
What do three short blasts of a horn mean?
One prolonged blast indicates you are getting under way, and three short blasts indicate you are backing up. This is what is sounded when you are departing a dock in reverse. Five Short Blasts – This is the DANGER signal.
Why should you never drop your anchor from the stern of your boat?
When you drop your anchor from the stern of your boat, the chain attached to the anchor acts as a fulcrum and can swing your boat into the wind. Your boat could roll over and capsize.
How far do I back my boat trailer into the water?
It should be just about as deep as it was when taking the boat off, and in most cases, about two-thirds of the trailer will be submerged while one-third remains out of the water. Don’t submerge the trailer too deep, or the bow of the boat may float over the bunks and go off to the side.
When boating at night what does a single white on a boat tell you?
Powerboat A: When only a white light is visible, you may be overtaking another vessel. Give way to either side. Powerboat B: You are being overtaken.
What side should boats pass each other?
If you meet another boat head-on: Under the boating rules of the road, vessels approaching each other head-on are always supposed to pass each other port to port — or left to left, just like on the road.
What does a single white light on a boat tell you?
What Does a White Light Indicate? If only a white light is visible, you may be approaching another craft from behind. You are the give-way-craft and must take early and substantial action to steer well clear by altering your course and passing at a safe distance on the starboard (right) or port (left) side.
Should I pee in my wetsuit?
Urinating inside a dry wetsuit is definitely not a good idea – it will start stinking and corroding the seams and stitching of your second skin. While in the lineup, if peeing is the only option, let some saltwater get in and drain out, avoiding lying down on your board for a long time.
Can you pee in a drysuit?
Peeing in a drysuit is just not a good idea. Not only is it messy, it will degrade the effectiveness of your underwear and you will become extremely cold. Fortunately, there are several options available to drysuit divers. Don’t knock adult diapers until you’ve given them a try.