The judge’s decision prevents U.S. Immigration and Customs Enforcement from deporting individuals subject to final removal orders to third countries — ones not designated in their original immigration proceedings — unless they are first given written notice and the opportunity to seek legal protection.

The restraining order will remain in effect until an April 10 hearing, in which the court will determine whether to impose a longer-term injunction against the policy. Just hours after the decision, the U.S. Department of Justice filed an appeal, arguing that the ruling undermines executive authority over immigration enforcement.