In October 2017, Pruitt removed several scientists from EPA advisory panels and forbade any scientist who receives a grant from the EPA from then serving those panels. By December 2017, 700 staff had left EPA during Pruitt's tenure, including over 200 scientists. During that time, Pruitt hired 129 people, including 7 scientists. In March 2018, Pruitt proposed to restrict the EPA from considering research that relies on confidential information, such as medical data. The proposal was modeled on a stalled Congressional bill. It was expected that by August 2017, 47 of 58 serving scientists would have been removed from their positions, though they typically serve three year terms and which are renewed after they first expire.