The Department of Homeland Security fully relaunched Deferred Action for Childhood Arrivals this week, the Obama-era program that allows illegal immigrants who were brought to the United States as children to apply for protection from deportation.

DHS announced late Monday it would immediately begin accepting applications for DACA, as it is known, in response to a federal judge’s ruling last week, which concluded the Trump administration’s attempts to walk back the program earlier this year were invalid. Judge Nicholas George Garaufis of the U.S. District Court for the Eastern District of New York last Friday ordered it to be fully reinstated in three days.