(a)

1. (1) A precautionary area is established bounded to the west by an arc of a circle with a radius of 6 miles centering upon geographical position 37°45.00′ N, 122°41.50′ W and connecting the following geographical positions:

   Latitude	Longitude
   37°42.70′ N	122°34.60′ W.
   37°50.30′ N	122°38.00′ W.

2. (2) The precautionary area is bounded to the east by a line connecting the following geographic positions:

   Latitude	Longitude
   37°42.70′ N	122°34.60′ W.
   37°45.90′ N	122°38.00′ W.
   37°50.30′ N	122°38.00′ W