DBA Publication Requirement
Within 30 days of registering a DBA in California, a notice must be published in a newspaper of general circulation. The notice should run once a week for four consecutive weeks, and the publication should be in the county of the primary place of business (or, if no paper exists in this county, then in an adjacent county). Out-of-state DBAs use Sacramento County. Within 30 days of the completion of the run, an affidavit to confirm the publishing must be filed with the County Clerk.
