Letter of Authority for Passport Pickup. How do I fill this out?Authorization Letter. The sole purpose of this form is to authorize the above named representative to complete the transaction indicated. Learn how to respond from the sample letter on this page. Information Request Letter Sample. The document is a letter of authority allowing a representative to pick up passports for the authorizer and their family members from the Courier Branch. Completely fill it out. Um, make sure whatever ID that the absent parent is using. Miscellaneous Service Rendered By Consulate.