“USCIS is taking steps to open a new operational center in Crystal City, a neighborhood in Arlington, Virginia, to accommodate about 1,000 full-time, permanent federal and contract employees in a variety of positions and grade levels,” the agency announced Monday in a bulletin flagged by Senator Jeff Sessions (R., Ala.). “The initial workload will include cases filed as a result of the executive actions on immigration announced on Nov. 20, 2014.”

Sessions said that the bulletin emphasizes the need for Congress to withhold funding for the agency.

“Some have suggested that implementing this amnesty would not have a financial cost, but this action unmistakably demonstrates otherwise,” he said in the statement. “The President cannot spend money unless the Congress approves it, and certainly the Congress should not approve funds for an illegal amnesty.”