| Business | Phone |
| Aviation Division 1201 Capitol Access Rd, Baton Rouge 70802 | (225) 274-9125 |
| Field Operations Div 1919 North Blvd, Baton Rouge 70806 | (225) 219-1500 |
| Highway Safety Commission 7919 Independence Blvd, Baton Rouge 70806 | (225) 925-6991 |
| Motor Vehicle Dept 7979 Independence Blvd, Baton Rouge 70806 | (225) 925-6146 |
| Used Motor Vehicles Dept 3132 Valley Creek Dr, Baton Rouge 70808 | (225) 925-3870 |
| Transportation & Development 1201 Capitol Access Rd, Baton Rouge 70802 | (225) 379-1200 |
| Transportation & Development 8100 Airline Hwy, Baton Rouge 70815 | (225) 231-4100 |
| Transportation & Development 8545 United Plaza Blvd 300, Baton Rouge 70809 | (225) 237-1204 |
| Transportation Dept 4101 Gourrier Ave, Baton Rouge 70808 | (225) 767-9139 |
| Transportation Dept 5040 Florida Blvd, Baton Rouge 70806 | (225) 248-4190 |
| Transportation Dept 7686 Tom Dr, Baton Rouge 70806 | (225) 231-4123 |
| Transportation Dept 8100 Airline Hwy, Baton Rouge 70815 | (225) 231-4191 |
| Transportation Dept Equipment 1701 Foss St, Baton Rouge 70802 | (225) 379-1882 |
| Transportation Dept Materials 5080 Florida Blvd, Baton Rouge 70806 | (225) 248-4131 |
| Transportation Dept Planning 8900 Jimmy Wedell St, Baton Rouge 70807 | (225) 274-4131 |
| Transportation Dept Research 4101 Gourrier Ave, Baton Rouge 70808 | (225) 767-9121 |
| Transportation Dept Training 4101 Gourrier Ave, Baton Rouge 70808 | (225) 767-9135 |
| Transprtn Dept-Customer Svc 1201 Capitol Access Rd, Baton Rouge 70802 | (225) 379-1100 |
| Transportation Traffic Svc 7686 Tom Dr, Baton Rouge 70806 | (225) 935-0100 |