21 U.S.C. § 2361

(a) Filing instructions Not later than 180 days after April 24, 2024 , the Director of the Financial Crimes Enforcement Network shall issue guidance or instructions to United States financial institutions for filing reports on suspicious transactions required under section 1010.320 of title 31, Code of Federal Regulations, related to suspected fentanyl trafficking by transnational criminal organizations. (b) Prioritization of reports relating to fentanyl trafficking or transnational criminal organizations The Director shall prioritize research into reports described in subsection (a) that indicate a connection to trafficking of fentanyl or related synthetic opioids or financing of suspected transnational criminal organizations.