The Centers for Disease Control and Prevention (CDC) is set to lose nearly 1,300 probationary employees—about 10% of its workforce—as part of a broader federal decision to remove all probationary employees from the agency.

The Trump administration explained to Fox News Digital that probationary employees of the federal government, who are facing mass terminations, are not ensured permanent employment.

Critics say the program that provides medical benefits to 9/11 first responders has seen a 20% reduction in staff.

The Department of Government Efficiency is taking aim at agencies such as the Internal Revenue Service and Social Security Administration, as the administration argues in court that Elon Musk is not the administrator of the newly-formed entity despite public comments from Trump to the contrary.