| Business | Phone |
| Transportation Dept 100 S Main St, Los Angeles 90012 | (213) 897-3656 |
| Transportation Dept 5360 W Imperial Hwy, Los Angeles 90045 | (310) 342-6161 |
| Transportation Dept 865 S Figueroa St # 400, Los Angeles 90017 | (213) 892-6400 |
| Transportation Dept 2187 Riverside Dr, Los Angeles 90039 | (213) 620-4745 |
| Transportation Dept 7301 E Slauson Ave, Los Angeles 90040 | (213) 620-2272 |
| Transportation Dept-Bridge 7300 Bandini Blvd, Los Angeles 90040 | (213) 620-2708 |
| Transportation Dept-Sign 7314 Bandini Blvd, Los Angeles 90040 | (213) 620-3110 |
| Transportation Dept-Signal 7316 Bandini Blvd, Los Angeles 90040 | (213) 620-2215 |