154. Outer limit.

Wherever it extends beyond 200 nautical miles (NM) from the baseline from which the territorial sea is measured,1 the coastal state must establish the outer edge of its continental margin2 by drawing either:

  1.  

    (1)     a line delineated by reference to the outermost fixed points at each of which the thickness of sedimentary rocks is at least 1 per cent of the shortest distance from such point to the foot of the continental slope3; or

  2.  

    (2)     a line delineated by reference to fixed points not more than 60 NM from the foot of the continental slope4.

The fixed points either must