The details and current status of data requests submitted through the Data Request Help Desk page can be seen here.
License plate search
Thank you for your inquiry to Data.gov,
New Data Request
Re: "License plate search, Vehicle history"
Unfortunately, this is not something that Data.gov or the Data.gov staff is able to address. Data.gov is a catalog of datasets provided by U.S. Government agencies in accordance with the Open Data Policy. For other information and general issues concerning the U.S. Government, please visit www.usa.gov or use the contact form at https://www.usa.gov/email
You may also contact States' Secretary of State or Department of Transportation for the information you seek.