Duties of Conservator and Acknowledgment of Receipt of Handbook for Conservators. GC-350, Letters of Conservatorship.Notice and Acknowledgment of Receipt. (form. FL-117. ) and a postage-paid return envelope addressed to me. If you have any questions, please call the Contra Costa County Clerk-Recorder's Office at (925) 335-7900. How to fill out the California Civil Notice Acknowledgment Receipt Form? Be a Contra Costa County resident. Attached is the Certificate of Appointment of Deputy Commissioner of Civil Marriage. Acknowledgement of Receipt of the Written Policies. 30. Participation Handbook Acknowledgment of Receipt (attached).