The Treasury Department has launched a public search for a new permanent director of the Financial Crimes Enforcement Network (FinCEN) after the acting head of the agency announced his intentions to step down.

Michael Mosier will leave FinCEN at the end of the week to pursue a new opportunity, the agency acknowledged Tuesday. Mosier was named acting director in April, assuming the position after Kenneth Blanco vacated the role for the first time since December 2017.

“Serving as acting director of FinCEN has been an absolute honor, and I am forever grateful to the committed professionals of the bureau who work tirelessly every day to help advance the integrity and innovative strength of the financial system,” said Mosier in a press release.

Himamauli Das, a national security expert with experience at the White House, Departments of State and the Treasury and more, will take over as acting head at FinCEN.

“It is an honor to be returning to the Department of the Treasury as acting director of FinCEN to continue the important work the bureau is doing to combat money laundering and disrupt illicit financing, especially as technologies become more sophisticated and as threats are on the rise,” stated Das.

Das added a priority under his leadership will be continued implementation of the Anti-Money Laundering Act of 2020. FinCEN in late June announced the first government-wide list of priorities for anti-money laundering and countering the financing of terrorism (AML/CFT) as required by the legislation. The AML Act calls for FinCEN to present related regulations within 180 days of the establishment of the AML/CFT priorities.

Also on the agency’s list is rulemaking regarding beneficial ownership and cryptocurrency.