To order a death certificate you will need: Name of the decedent; Date of death; City where the death occurred. A notary public or other officer completing this certificate verifies only the identity of the individual who signed the document to which this certificate is.Sworn statements must be notarized for authorized copy requests. A Notarized Sworn Statement is required when requesting a certified authorized copy of the amended certificate. In Southern California the requirement for Affidavit of Death of Trustee are that you attach a copy of the death certificate. Send the completed Affidavit form to the State Office of Vital Records. Address: California Department of Public Health.