If implemented, the order creates a “Schedule F” class of federal employees who are policymakers from certain agencies who would no longer have protection against being easily fired — and would likely include some veteran civil service scientists who offer key guidance to Congress and the White House.

Those agencies might handle the order differently, and it is unclear how many positions could fall under Schedule F — but some say possibly thousands.

“This much-needed reform will increase accountability in essential policymaking positions within the government,” OMB director Russ Vought tells Axios in a statement.

What they’re saying: Several medical associations, including the Infectious Diseases Society of America, strongly condemned the action, and Democrats on the House oversight panel demanded the administration “immediately cease” implementation.