A New York Certificate of Discontinuance of Doing Business Under Assumed Name (Discontinuance of DBA) is a legal document that is filed with the New York State Department of State to discontinue the use of an assumed business name. Also known as a DBA (Doing Business As) or Fictitious Name Certificate, this document is required for any business or individual conducting business under an assumed name in the state of New York. The filing of this document is required to discontinue the use of an assumed name, and to help protect the public from any fraudulent activities. The Certificate of Discontinuance of Doing Business Under Assumed Name (Discontinuance of DBA) can be filed either for a single individual or a business entity. The two types of New York Certificates of Discontinuance of Doing Business Under Assumed Name (Discontinuance of DBA) are: 1. Certificate of Discontinuance of Doing Business Under Assumed Name (Individual): This document is used when an individual wishes to discontinue the use of an assumed business name. 2. Certificate of Discontinuance of Doing Business Under Assumed Name (Entity): This document is used when a business entity wishes to discontinue the use of an assumed business name.