Where should a DBA be registered for approval before being used?

A "Doing Business As" (DBA) name is essential for businesses operating under a name different from their legal name. In Texas, which follows a specific regulatory framework, a DBA must be registered at the county clerk's office where the business is primarily conducted. This ensures that the name is available and not already in use by another entity in that county. Registering a DBA at the county level allows for local oversight and compliance with local business regulations, ultimately protecting consumers and other businesses.

The other locations mentioned, such as a state business office or a federal business administration, do not handle the registration of DBAs in Texas. The local city office might also have regulations, but the formal registration specifically must take place with the county clerk's office to ensure the name's legality in that jurisdiction. Therefore, the correct answer emphasizes local governance and the importance of registering at the relevant county branch to operate under a DBA in compliance with Texas law.