A federal judge issued a permanent injunction Monday blocking the Trump administration from moving the FBI's new headquarters to Washington, D.C. [1].

The ruling prevents the administration from scrapping a previously approved relocation plan, ensuring the agency's new home remains in Maryland. This decision halts a significant effort to centralize the bureau's operations within the capital's federal office complex.

U.S. District Judge James Dever issued the order on Aug. 17, 2026 [1]. The injunction blocks the administration's attempt to move the headquarters to the Reagan Building, a federal office building located in Washington, D.C. [2].

Under the ruling, the FBI must proceed with the Biden-era plan to locate the headquarters in Greenbelt, Maryland [3]. The court found that the administration failed to provide a compelling reason to abandon the Maryland site. Judge Dever said the move to the D.C. building would be arbitrary and contrary to the statutory process [4].

The dispute centered on whether the executive branch had the authority to unilaterally pivot the location of the headquarters after the Greenbelt site had been approved. The court determined that the administration did not demonstrate sufficient cause to override the existing process [5].

The permanent injunction means the administration cannot legally pursue the Reagan Building as the site for the FBI's new headquarters [1]. This preserves the logistical and legal framework established during the previous administration's tenure.

A federal judge issued a permanent injunction blocking the Trump administration from moving the FBI's new headquarters to Washington, D.C.

This ruling reinforces the legal constraints on an administration's ability to reverse major infrastructure and agency relocation projects initiated by a predecessor. By labeling the proposed move as arbitrary, the court emphasizes that federal agency relocations must follow a statutory process rather than shifting based on the political preferences of the current executive branch.