571—37.2(462A) Definitions.

For the purpose of Divisions I, II, and III of this chapter:

“A Scale” or “A” means the physical scale marked “A” graduated in decibels on a sound level meter that meets the requirements of the American National Standards Institute, Incorporated, publication S1.4 — 1983 General Purpose Sound Level Meters.

“Buoy” means any device designed to float that is anchored in the water and that is used to convey a message.

“Display area” means the area on a sign or buoy needed for display of a waterway marker symbol.

“Diver’s flag” means a red flag or device with a white diagonal running from the upper left hand corner to the lower right hand corner (from mast head to lower outside corner).

“PFD” means a U.S. Coast Guard-approved personal flotation device that is intended to be worn or thrown.

“Regulatory marker” means a waterway marker that has no equivalent in the U.S. Coast Guard system of navigational aids.

“Sign” means any device for carrying a message that is attached to another object such as a piling, buoy, structure or the land itself.

“Symbols” means geometric figures such as a diamond, circle, rectangle, etc., used to convey a basic message.

“Throwable PFD” means a PFD that is intended to be thrown to a person in the water. A PFD marked as Type IV or Type V with Type IV performance is considered a throwable PFD. Unless specifically marked otherwise, a wearable PFD is not a throwable PFD.

“Waterway marker” means any device designed to be placed in, on, or near the water to convey an official message to a boat operator on matters which may affect health, safety, or well-being, except that such devices of the U.S. or any agency of the United States are excluded from the meaning of this definition.

“Wearable PFD” means a U.S. Coast Guard-approved PFD that is intended to be worn or otherwise attached to the body. A PFD marked as Type I, Type II, Type III, or Type V with Type I, II or III performance is considered a wearable PFD.

[ARC 9219C, IAB 5/14/25, effective 6/18/25]