This authorization letter allows a representative to transfer ownership of a vehicle on behalf of the lawful owner. Forms on this website are PDFs with fillable fields.Forms should be downloaded to your computer before filling in the fields. How to fill out the Letter of Authorization for Vehicle Use? 1. Enter the owner's name and identification number. 2. How do I get a sample license plate for a collection? Sample Reassignment Letter 1; A copy of the violation notice. This letter serves as official authorization for the release of your vehicle from the impound lot, ensuring you can reclaim your car without unnecessary delays. A complete explanation of the letter of credit requirements is attached. This form must be signed in the presence of a notary public.