Complete an Online Application. View a list of the available Notary Public forms available from the California Secretary of State's office here.This article and video will show Notaries to fill out each part of a notarial certificate, and common mistakes to avoid. Services include witnessing the signing of important documents, taking affidavits and depositions and giving oaths. A notary public must file an oath of office and bond with the county clerk's office in the county where their principal place of business is located. To register and file as a new or renewing Notary Public in Riverside County, you will need to provide the following information to the office. Complete the CA Notary Public application form. Pass the state-administered exam.