The sole purpose of this form is to authorize the above named representative to complete the transaction indicated. (Personalized Seal).This article will explain the authorization letter format and also give you authorization letter samples for your reference. I have read (or had explained to me) and understand the requirements concerning my responsibilities under the Houston Food. Add necessary details, such as your position regarding the duties you delegate. Authorization Letter. TS-12. Pdf, Vehicle Specific Authorization Letter. VTR-270. This article will explain the authorization letter format and also give you authorization letter samples for your reference. Ensure that you specify the item or document being claimed. Download the Template Permission Letter.