ARCHIPELAGIC SEA LANES (ASL)
Archipelagic Sea Lanes, as defined in UNCLOS, have been
designated in the area of this chart. Vessels exercising
archipelagic sea lanes passage shall not deviate more than 25
nautical miles from the charted axis line. The axis line of the
ASL does not indicate the deepest water, any route or
recommended track. For details see The Mariners Handbook
(NP100) and Admiralty Sailing Directions.