Code of Federal Regulations Title 33. Navigation and Navigable Waters § 33.3.40–40 Sector Upper Mississippi River Marine Inspection Zone and Captain of the Port Zone

Sector Upper Mississippi River's office is located in St. Louis, MO. Subject to the overriding provisions of § 3.40–5, the boundaries of Sector Upper Mississippi River's Marine Inspection Zone and Captain of the Port Zone include all of Wyoming except for Sweetwater County;  all of North Dakota, South Dakota, Nebraska, Colorado, Kansas, and Iowa;  all of Missouri with the exception of Perry, Cape Girardeau, Scott, Mississippi, New Madrid, Dunklin, and Pemiscot Counties;  that part of Minnesota south of latitude 46°20'00” N;  that part of Wisconsin south of latitude 46°20'00” N, and west of longitude 90°00'00” W;  that part of Illinois west of longitude 90°00'00” W and north of latitude 41°00'00” N;  that part of Illinois south of latitude 41°00'00” N, except for Jackson, Williamson, Saline, Gellatin, Union, Johnson, Pope, Hardin, Alexander, Pulaski, and Massac Counties;  that part of the Upper Mississippi River above mile 109.9, including both banks, and that part of the Illinois River below latitude 41°00'00” N.