 The right to renounce Nigerian citizenship is established in § 29 of the 1999 Constitution of Nigeria, which states that "any citizen of Nigeria of full age who wishes to renounce his/her Nigerian citizenship shall make a declaration in the prescribed manner for the renunciation", which the government is obliged to register except when Nigeria is physically involved in a war or when the President of Nigeria is of the opinion that the renunciation is contrary to public policy.Under § 29(4)(a), a person of either gender becomes "of full age" at eighteen years, while under § 29(4)(b) a girl younger than that is still deemed to be "of full age" if she is married.In 2013, the Senate of Nigeria proposed a constitutional amendment to delete § 29(4)(b), which would have the effect that girls could only renounce Nigerian citizenship at the age of eighteen or older regardless of their marital status; the amendment passed by a vote of 75–14, two votes greater than the two-thirds supermajority required for the passage of constitutional amendments.