California splits the notary's paperwork between two offices, and knowing which goes where is a recurring exam point. The Secretary of State appoints the notary, issues the commission, receives change-of-address notices and handles discipline. The oath of office and the bond, by contrast, are filed with the clerk of the county of the notary's principal place of business, and they must be filed within 30 calendar days of the commission's beginning date or the commission is not valid. The county filing serves a specific purpose: it creates a local record where a member of the public who has been harmed can find the bond and make a claim against it, which is why it sits with the county of the notary's business rather than of residence or of any recording. The filing determines record location, not territorial authority — a notary filed in one county may act anywhere in California — but a change in the county of principal place of business requires a new oath and bond filed there.