(1) Power to appoint persons to hold or act in the offices to which this section applies and to remove persons so appointed from any such office shall vest in the President.
(2) The offices to which this section applies are, namely -
(a) Secretary to the Government of the Federation;
(b) Head of the Civil Service of the Federation;
(c) Ambassador, High Commissioner or other Principal Representative of Nigeria abroad;
(d) Permanent Secretary in any Ministry or Head of any Extra-Ministerial Department of the Government of the Federation howsoever designated; and
(e) any office on the personal staff of the President.
(3) An appointment to the office of the Head of the Civil Service of the Federation shall not be made except from among Permanent Secretaries or equivalent rank in the civil service of the Federation or of a State.
(4) An appointment to the office of Ambassador, High Commissioner or other Principal Representative of Nigeria abroad shall not have effect unless the appointment is confirmed by the Senate.
(5) In exercising his powers of appointment under this section, the President shall have regard to the federal character of Nigeria and the need to promote national unity.
(6) Any appointment made pursuant to paragraphs (a) and (e) of subsection (2) of this section shall be at the pleasure of the President and shall cease when the President ceases to hold office;
Provided that where a person has been appointed from a public service of the Federation or a State, he shall be entitled to return to the public service of the Federation or of the State when the President ceases to hold office.
Section 171 of the Constitution of the Federal Republic of Nigeria