| Business | Phone |
| Iowa Motor Vehicle Div 1622 S Federal Ave, Mason City 50401 | (641) 423-8391 |
| Iowa Transportation Garage 680 6th St Se, Mason City 50401 | (641) 423-9441 |
| Motor Vehicle Enforcement 1622 S Federal Ave, Mason City 50401 | (641) 423-7648 |
| Transportation Dept 1420 4th St Se, Mason City 50401 | (641) 423-7584 |
| Transportation Dept 672 6th St Se, Mason City 50401 | (641) 423-7676 |