The term listed means admitted to full trading privileges upon application by the issuer or its fiscal agent or, in the case of the securities of a foreign corporation, upon application by a banker engaged in distributing them; and includes securities for which authority to add to the list on official notice of issuance has been granted.
17 C.F.R. §240.3b-1
Sec. 3, 48 Stat. 884; 15 U.S.C. 78c