An ethics manual acknowledgement form for City officers and employees to sign upon receipt of the Board of Ethics manual. Sample Acknowledgement for Portfolio.I would like to express my sincere gratitude for the opportunity to present my academic portfolio. Complete this section only if unable to secure signature of affected adjacent owner or representative. Proof of delivery (i.e. Fill out, sign, and affix your official seal to the Notary certificate. The wording requirements for acknowledgment certificates vary from state to state. The intern thanks the managing director of the company for guiding them and allowing them to complete their project. Emails, reports, memoranda, business letters, and acknowledgements are each an example of business letter and report writing. An acknowledgement agreement is a legal document formalizing some agreement between parties, similar to a memorandum of understanding.