State of Connecticut General Statute Section 35-1(a) requires any person doing business in Connecticut, except as provided by statute, under any name other than the name of the person or persons conducting or transacting business, must register a Trade Name Certificate with the Town Clerk's office in the town where the business is to be conducted or transacted.
All people who are authorized to sign on behalf of the business must sign their name on the Trade Name Certificate. The signatures must be witnessed by a Notary Public or Town Clerk.
The filing fee for a Trade Name Certificate is $10.00. Click HERE for a Trade Name Certificate Form.
Additionally, the State of Connecticut has information available on starting or expanding one's business: