A line drawn from Marquesas Keys, Florida at approximate position latitude 24°47.5' N, longitude 82°11.2' W; along the 12-mile line which marks the seaward limits of the territorial sea (as defined in 33 CFR 2.22(a)(1) ) to Rio Grande, Texas at approximate position latitude 25°58.6' N, longitude 96°55.5' W.
46 C.F.R. §7.105