On June 4, the U.S. Treasury Department’s Office of Foreign Assets Control (OFAC) announced the issuance of regulations to implement Executive Order (E.O.) 13894: “Blocking Property and Suspending Entry of Certain Persons Contributing to the Situation in Syria.” E.O. 13894 was issued last October following the determination that the situation in and in relation to Syria “undermines the campaign to defeat [ISIS].” The final rule implementing the regulations, which was published in an abbreviated form to provide immediate guidance to the public, took effect June 5. OFAC states it “intends to supplement these regulations with a more comprehensive set of regulations, which may include additional interpretive and definitional guidance, general licenses, and statements of licensing policy.”