The area bounded by a line from 4315 N, 6555W; 4421 N; 6716W; 4310 N; 6940W; 4105 N; 6940W; 4032 N; 7215W; 3955 N; 7300W; 3938 N; 7300W; 3936 N; 7340W; 3700 N; 7530W; 3610 N; 7510W; 3510 N; 7510W; 3200 N; 8030W; 3030 N; 8100W; 2640 N; 7940W; 2500 N; 8005W; 2425 N; 8115W; 2420 N; 8145W; 2430 N; 8206W; 2441 N; 8206W; 2443 N; 8200W; 2500 N; 8130W; 2510 N; 8123W; 2535 N; 8130W; 2615 N 8220W; 2750 N; 8305W; 2855 N; 8330W; 2942 N; 8400W; 2920 N; 8500W; 3000 N; 8710W; 3000 N; 8830W; 2845 N; 8855W; 2845 N; 9000W; 2925 N; 9400W; 2820 N; 9600W; 2730 N; 9700W; 2600 N; 9700W; 2558 N; 9707W; westward along the U.S./Mexico border to 323203" N, 1170725" W; 3230 N; 11725W; 3235 N; 11830W; 3305 N; 11945W; 3355 N; 12040W; 3450 N; 12110W; 3850 N; 12400W; 4000 N; 12435W; 4025 N; 12440W; 4250 N; 12450W; 4615 N; 12430W; 4830 N; 12500W; 4820 N; 12800W; 4820 N; 13200W; 3742 N; 13040W; 2900 N; 12400W; 3045 N; 12050W; 3200 N; 11824W; 3230 N; 11720W; 323203" N; 1170725" W; eastward along the U.S./Mexico border to 2558 N, 9707W; 2600 N; 9700W; 2600 N; 9500W; 2630 N; 9500W; then via 2630 N; parallel to 2630 N; 8400W; 2400 N; 8300W; then Via 2400 N; parallel to 2400 N; 7925W; 2540 N; 7925W; 2730 N; 7850W; 3045 N; 7400W; 3930 N; 6345W; 4300 N; 6548W; to point of beginning. [Doc. No. FAA-2001-10693, 66 FR 49822, Sept. 28, 2001. Redesignated at 69 FR 16756, Mar. 30, 2004]