How do i contact the us department of transportation? Toll-Free: 888-327-4236 / Hearing Impaired (TTY): 800-424-9153 / Media Inquiries: 202-366-9550 USDOT General Information Main Switchboard (including personnel locator): 202-366-4000 / Monday-Friday, 8:30 a.m.-5:30 p.m. Eastern, excluding Federal Holidays.What does the federal highway administration do for the state? Federal Highway Administration. The Federal Highway Administration supports state and local government in the design, construction, and maintenance of the highway system. FHA.Where is the nhtsa office in washington dc? NHTSA Headquarters 1200 New Jersey Avenue SE. West Building Washington, DC 20590 Toll-Free: 888-327-4236 / Hearing Impaired (TTY): 800-424-9153 / Media Inquiries: 202-366-9550 USDOT General Information Main Switchboard (including personnel locator): 202-366-4000 / Monday-Friday, 8:30 a.m.-5:30 p.m. Eastern, excluding Federal Holidays.How do i contact nhtsa by phone? NHTSA Contact Information. Toll-Free: 888-327-4236 / Hearing Impaired (TTY): 800-424-9153 / Media Inquiries: 202-366-9550 USDOT General Information Main Switchboard (including personnel locator): 202-366-4000 / Monday-Friday, 8:30 a.m.-5:30 p.m. Eastern, excluding Federal Holidays.