http://nccdb.fmcsa.dot.gov/HomePage.asp
Federal Motor Carrier Safety Administration (FMCSA)
Household Goods or Safety Violations Complaints can be reported online using these links, or if you prefer, you can use the toll free hotline 1-888-DOT-SAFT (1-888-368-7238) available from 9:00 AM to 9:00 PM, Monday through Friday Eastern StandardTime.