(1) Any citizen of Nigeria of full age who wishes to renounce his Nigerian citizenship shall make a declaration in the prescribed manner for the renunciation.
(2) The President shall cause the declaration made under subsection (1) of this section to be registered and upon such registration, the person who made the declaration shall cease to be a citizen of Nigeria.
(3) The President may withhold the registration of any declaration made under subsection (1) of this section if-
(a) the declaration is made during any war in which Nigeria is physically involved; or
(b) in his opinion, it is otherwise contrary to public policy.
(4) For the purposes of subsection (1) of this section.
(a) "full age" means the age of eighteen years and above;
(b) any woman who is married shall be deemed to be of full age.
Section 29 of the Constitution of the Federal Republic of Nigeria