practice. Federal law In with regard to delegation of authority by the president, it is provided that "nothing herein shall be deemed to require express authorization in any case in which such an official would be presumed in law to have acted by authority or direction of the president." This pertains directly to the heads of the executive departments as each of their offices is created and specified by statutory law (hence the presumption) and thus gives them the authority to act for the president within their areas of responsibility without any specific delegation. Under (also known as the 1967 Federal Anti-Nepotism statute), federal officials are prohibited from appointing their immediate family members to certain governmental positions, including those in the Cabinet. Under the Federal Vacancies Reform Act of 1998, an administration may appoint acting heads of department from employees of the relevant department. These may be existing high-level career employees, from political appointees of the outgoing administration (for new administrations), or sometimes lower-level appointees of the administration. Confirmation process The heads of the executive departments and all other federal agency heads are nominated by the president and then presented to the Senate for confirmation or rejection by a simple majority (although before the use of the "nuclear option" during the 113th United States Congress, they could have been blocked by filibuster, requiring cloture to be invoked by supermajority to further consideration). If approved, they receive their commission scroll, are sworn in, and begin their duties. When the Senate is not in session, the president can appoint acting heads of the executive departments, and do so at the beginning of their term. An elected vice president does not require Senate confirmation, nor does the White House chief of staff, which is an appointed staff position of the Executive Office of the President. Salary The heads of the executive departments and most other senior federal officers at cabinet or sub-cabinet level receive their salary under a fixed five-level pay plan known as the Executive Schedule, which is codified in Title 5 of the United States Code. Twenty-one positions, including the heads of the executive departments and others, receiving LevelI pay are listed in , and those forty-six positions on LevelII pay (including the number two positions of the executive departments) are listed in . , the LevelI annual pay was set at $221,400. The annual salary of the vice president is