An Acknowledgment of Receipt (AOR) is an official letter that IRCC sends you confirming they have received your application and will start processing it. I mailed my application in September 2020 and received my temporary AOR a few days ago (April 2021).In this video, you get answers to these questions: What is a receipt and release form? The taking of an acknowledgment consists of positively identifying the signer of a document. Is a confirmation receipt an acceptable receipt for a lost Employment Authorization Document (EAD) (Form I766)?. National Notary Association. Discover the value of acknowledgment letters in confirming the receipt of deliveries. Use our free template to craft an effective, professional letter. Acknowledgement Receipt Template Printable Minimalist, Google Docs Editable, Modern, Digital Receipt, Instant Download, A4 and US Letter. NOTE: Do not submit an inquiry if you recently filed an application.