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. I am here doing a um mock notarization for an acknowledgement and durat i want to show you how to fill out both of them. Acknowledgments include the Notary's seal and a written certificate. You can't use a California acknowledgement (assuming you really are in Illinois, as the automated system figured out). Here is a step-by-step procedure to perform a proper notarization: Step 1: Personal appearance is required. Having the person to be served complete, sign, and return one of the notice and acknowledgements of receipt. The AD90 will be submitted within the 30day period regardless of the status of any pending appeals. Procedure for completing the. AD90.