The Federal Bureau of Prisons is closing federal prison camps, minimum security across the country in a sweeping decision to change corrections in the U.S.

Citing a “very difficult budget situation,” the Bureau of Prisons on Thursday notified the union for federal prison workers that it plans to close seven facilities, impacting approximately 400 employees.

In the bureau’s release, it said the goal of deactivating the satellite camp is to maximize resources and mitigate safety concerns. Employees at the camp will move to the main facility and inmates will be relocated to other facilities.