Area To Be Avoided

A map of the Florida Keys with four areas in red hash marks — Four areas of the sanctuary are designated ATBA

The Area to be Avoided (ATBA), through sanctuary regulations, prohibits all tank vessels and vessels greater than 50 meters in registered length from entering or operating in the ATBA areas of the Florida Keys. There are four ATBAs in the sanctuary: (1) spanning the length of the Florida Keys from Miami to Key West; (2) in the vicinity of Key West Harbor; (3) in an area surrounding the Marquesas Keys; and (4) in an area surrounding the Dry Tortugas (Figure 4.13).