An acknowledgment is one of the most common types of notarial acts, but it often confuses Notaries. Here are 5 steps to performing an acknowledgment.An applicant may obtain an Aldermanic Acknowledgement Letter from their respective Alderman and submit it with their building permit application. The taking of an acknowledgment consists of positively identifying the signer of a document. Acknowledge contributions warmly, but avoid being overly sentimental, especially in the professional sections. In the "Acknowledgments" section of a publication or presentation. This letter serves as a notification that we did not spend the entirety of our grant (referenced above).