Roger Runningen writes 480 OMB employees were notified of the furloughs, which average out to one day per pay period between April 21 and Sept. 7.
Bloomberg reports White House staff members such as advisers to President Barack Obama will also be subject to furloughs.
The White House is also cutting supply and equipment purchases, a White House spokesman said, Bloomberg reports.
Agencies are required to provide employees 30 days notice before any furloughs, the Washington Post reports.