Area. All of the waters of the Potomac River upstream of a line beginning at a point defined by Lat. 38° 21’ 04.07” N, Long. 77° 0’ 58.24” W; then running 82° True to a point defined by Lat. 38° 21’ 24.78” N, Long. 76° 58’ 36.89” W; and downstream of a line beginning at a point defined by Lat. 38° 22’ 18.25” N, Long. 76° 59’ 04.53” W; then running 260° True to a point defined by Lat. 38° 22’ 03.52” N, Long. 77° 0’ 56.60” W. The area described in §A of this regulation has a 6-knot speed limit all year. This regulation shall be effective through December 31, 2024.