49 CFR §385.19

1. (a)Final ratings will be made available to other Federal and State agencies in writing, telephonically or by remote computer access.
2. (b)The final safety rating assigned to a motor carrier will be made available to the public upon request. Any person requesting the assigned rating of a motor carrier shall provide the FMCSA with the motor carrier's name, principal office address, and, if known, the USDOT number or the docket number, if any.
3. (c)Requests should be addressed to the Federal Motor Carrier Safety Administration, Office of Registration and Safety Information (MC-RS), 1200 New Jersey Ave. SE, Washington, DC 20590-0001. The information also can be found on the FMCSA Safety and Fitness Electronic Records System website at https://safer.fmcsa.dot.gov.
4. (d)Oral requests by telephone to (800) 832-5660 will be given an oral response.