A Registered Pilot's assignment is completed when the vessel to which he is assigned completes its arrival at or, in the case of a through trip, passes any of the following places:
(a) Snell Lock;
(b) Cape Vincent;
(c) Port Weller;
(d) Port Colborne;
(e) Detroit/Windsor, other than assignments originating or terminating at a point on the Detroit River;
(f) Port Huron/Sarnia;
(g) Detour;
(h) Gros Cap;
(i) Chicago with respect to assignments originating at Detour or Port Huron/Sarnia; and
(j) Duluth/Superior and Fort William/Port Arthur with respect to assignments originating at Gros Cap. [CGFR 68-57, 33 FR 6479, Apr. 27, 1968. Redesignated at 61 FR 32655, June 25, 1996, and further redesignated by USCG-1998-3976, 63 FR 35139, June 29, 1998; USCG-2008-0906, 73 FR 56511, Sept. 29, 2008]