| Business | Phone |
| Boatwatchers' Hotline-Vessel Canal Park, Duluth 55802 | (218) 722-6489 |
| Driver's License Exam Station 4602 Grand Ave, Duluth 55807 | (218) 628-4925 |
| Duluth Seaway Port Authority 1200 Port Terminal Rd, Duluth 55802 | (218) 727-8525 |
| Transportation Dept 1123 Mesaba Ave, Duluth 55811 | (218) 723-4870 |