33 CFR 100.920 - Tug Across the River, Detroit, MI.
(a)Regulated Area. A regulated area is established to include all waters of the Detroit River, Detroit, Michigan, bounded on the south by the International boundary, on the west by 083°03′ W, on the east by 083°02′ W, and on the north by the U.S. shoreline (DATUM: NAD 83). This position is located on the Detroit River in front of Hart Plaza, Detroit, MI.
(c)Enforcement Period: The third or fourth week in June. The exact dates and times for this event will be determined annually.
(d) Vessel operators desiring to enter or operate within the regulated area shall contact the Coast Guard Patrol Commander to obtain permission to do so. Vessel operators given permission to enter or operate in the regulated area must comply with all directions given to them by the Coast Guard Patrol Commander.