1. Short title This Act may be cited as the Stop Fentanyl Money Laundering Act of 2023 . 2. GAO study on designation of Mexican cartels as Foreign Terrorist Organizations (a) Findings The Congress finds the following: (1) Entities placed on the list of Foreign Terrorist Organizations maintained by the Secretary of State are suspected of engaging in terrorism-related activities. (2) By designating an entity to be placed on the list of Foreign Terrorist Organizations, the United States seeks to limit the entity’s financial, property, and travel interests. (3) Per section 219 of the Immigration and Nationality Act, as amended by section 302 of the Antiterrorism and Effective Death Penalty Act of 1996, the Secretary of State must demonstrate that an entity of concern has met the following three criteria to allow the Secretary to designate the entity as a Foreign Terrorist Organization: (A) The entity is a foreign organization. (B) The entity engages in or retains the capability and intent to engage in terrorism. (C) The entity threatens the security of U.S. nationals or the national defense, foreign relations, or the economic interests of the United States. (b) Study The Comptroller General of the United States, in consultation with the Secretary of State, shall carry out a study on the implications of the Secretary of State designating Mexican drug cartels as foreign terrorist organizations under section 219 of the Immigration and Nationality Act ( 8 U.S.C. 1189 ). (c) Contents In carrying out the study required under subsection (b), the Comptroller General shall— (1) review any analyses conducted by Federal agencies pertaining to designating Mexican drug cartels as foreign terror organizations