Information is tabulated in seven columns as follows:
Numbers assigned to each light, RACON or RAMARK by NGA and Admiralty. RACONs and RAMARKs located at a light are listed with the light. Those not located at a light are assigned separate numbers.
Name and descriptive location of the light or buoy, RACON or RAMARK. This column is intended to describe the location of the navigational aid and to distinguish it from others in proximity. They can indicate the following: Lights intended for landfall or having a visibility (range) of 15 miles or more; Floating aids; Lightships and LANBYs; All other lights not mentioned above.
Latitude and longitude (approx.) of a navigational aid to the nearest tenth of a minute, intended to facilitate chart orientation (use column 2 and the appropriate chart for precise positioning).
Characteristics of light, buoy, RACON or RAMARK characteristic (see Characteristics of Lights chart for explanation of lights).
Height of light in feet and in meter, and range, the distance, expressed in nautical miles, that a light can be seen in clear weather or that a RACON or RAMARK can be received.
Description of the structure
Height of the structure in feet
Remarks–sectors, fog signals, radar reflectors, minor lights close by, radiobeacons, storm signals, signal stations, radio direction finders, and other pertinent information.