<P> The core White House staff appointments, and most EOP officials generally, are not required to be confirmed by the U.S. Senate, although there are a handful of exceptions (e.g., the Director of the Office of Management and Budget, the Chair and members of the Council of Economic Advisers, and the United States Trade Representative). </P> <P> The information in the following table is current as of July 31, 2017 . Only principal executives are listed; for subordinate officers, see individual office pages . </P> <Table> <Tr> <Th> Agency </Th> <Th> Principal executive </Th> <Th> Incumbent </Th> </Tr> <Tr> <Td> White House Office </Td> <Td> White House Chief of Staff </Td> <Td> John F. Kelly </Td> </Tr> <Tr> <Td> National Security Council </Td> <Td> Assistant to the President for National Security Affairs </Td> <Td> H.R. McMaster </Td> </Tr> <Tr> <Td> Council of Economic Advisers </Td> <Td> Chair of the Council of Economic Advisers </Td> <Td> Kevin Hassett </Td> </Tr> <Tr> <Td> Council on Environmental Quality </Td> <Td> Managing Director of the Council on Environmental Quality </Td> <Td> Vacant </Td> </Tr> <Tr> <Td> Executive Residence Staff and Operations </Td> <Td> White House Chief Usher </Td> <Td> Timothy Harleth </Td> </Tr> <Tr> <Td> Office of Administration </Td> <Td> Director of the Office of Administration </Td> <Td> Marcia Lee Kelly </Td> </Tr> <Tr> <Td> Office of Management and Budget </Td> <Td> Director of the Office of Management and Budget </Td> <Td> Mick Mulvaney </Td> </Tr> <Tr> <Td> Office of National Drug Control Policy </Td> <Td> Director of National Drug Control Policy </Td> <Td> Richard Baum (Acting) </Td> </Tr> <Tr> <Td> Office of Science and Technology Policy </Td> <Td> Director of the Office of Science and Technology Policy </Td> <Td> Vacant </Td> </Tr> <Tr> <Td> Office of the United States Trade Representative </Td> <Td> United States Trade Representative </Td> <Td> Robert Lighthizer </Td> </Tr> <Tr> <Td> Office of the Vice President of the United States </Td> <Td> Chief of Staff to The Vice President </Td> <Td> Nick Ayers </Td> </Tr> <Tr> <Td> Office of the Counselor to the President </Td> <Td> Senior Counselor to the President </Td> <Td> Kellyanne Conway </Td> </Tr> </Table> <Tr> <Th> Agency </Th> <Th> Principal executive </Th> <Th> Incumbent </Th> </Tr>

List three offices included in the executive office of the president