(a) A line drawn across Blind Pass, between Treasure Island and Long Key, parallel with the general trend of the seaward, highwater shorline.
(b) Lines formed by the centerline of the highway bridges over Johns and Clearwater Passes.
(c) A line drawn across Dunedin and Hurricane Passes parallel with the general trend of the seaward, highwater shoreline.
(d) A line drawn from the northernmost extremity of Honeymoon Island to Anclote Anchorage South Entrance Light 7; thence to Anclote Key 28[deg]10.0[min] N. 82[deg]50.6[min] W; thence a straight line through Anclote River Cut B Range Rear Light to the shoreline. [CGD 77-118a, 42 FR 35784, July 11, 1977. Redesignated by CGD 81-017, 46 FR 28154, May 26, 1981, as amended by CGD 84-091, 51 FR 21748, June 16, 1986; CGD 93-071, 58 FR 65668, Dec. 16, 1993]