Non-lateral, They may notify you of regulations, like speed or no wake zones, warn of special hazards (like dams) or mark areas to stay away from, or give information,
White buoy's with orange markings and black lettering are a regulatory marker for boaters.
morring buey
white with orange markings and black lettering
A white buoy with an orange marking most likely indicates that you should proceed through the area with caution. The buoy often marks rapids, rocks, or sandbars.
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Controlled area
Keep out
An orange crossed diamond and black lettering indicates an area where vessels are prohibited and only swimming is allowed.
a yellow, white, or orange background
a yellow, white, or orange background
d
Keep out