The certificate of acknowledgment (PDF) must be in the form set forth in California Civil Code section 1189. WITNESS my hand and official seal. Signature. (Seal).A notary public or other officer completing this certificate verifies only the identity of the individual. An effective donor stewardship program acknowledges a gift in writing in a timely, accurate, and gracious manner. Every gift to UC San Diego is acknowledged. Upon receipt, the individual has 20 days to complete, sign, and return the notice and acknowledgement. By my signature, I acknowledge the following: 1. I have received a complete copy of these financial standards and practices. 2. If no deposit is received within 30 days, the County may forward said application to the appropriate decision-maker with a recommendation for denial. The sample acknowledgement letters for receipt of payment provided below can be used as format templates for official and personal purposes.