Delaware Trade Business And Fictitious Name Supplemental Registration Change is a process through which a business can register its name in the state of Delaware. It is a requirement for any business operating in Delaware to register its name with the Secretary of State. This process allows businesses to add, change, or delete their existing trade name, also known as a “DBA” (Doing Business As). There are three types of Delaware Trade Business And Fictitious Name Supplemental Registration Change: 1. Initial Registration: This is the process of registering a new fictitious name or trade name with the Delaware Secretary of State. 2. Amendment: This is the process of amending an existing fictitious name or trade name with the Delaware Secretary of State. 3. Cancellation: This is the process of canceling an existing fictitious name or trade name with the Delaware Secretary of State.