Periodical review of Senatorial districts and Federal constituencies
Section 73 · 1999 Constitution (2004 edition)
What Constitution says
(1) The Independent National Electoral Commission shall review the division of States and of the Federation into Senatorial districts and Federal constituencies at intervals of not less than ten years, and may alter the districts or constituencies in accordance with the provisions of this section to such extent as it may consider desirable in the light of the review. (2) Notwithstanding subsection (1) of this section, the Independent National Electoral Commission may at any time carry out such a review and alter the districts or constituencies in accordance with the provisions of this section to such extent as it considers necessary, in consequence of any amendment to section 8 of this Constitution or any provision replacing that section, or by reason of the holding of a census of the population, or pursuant to an Act of the National Assembly.
This is the 1999 Constitution as published in 2004. Later amendments aren't included yet, so a section may have changed since.
Original source
Official Gazette · CFRN 1999 official PDF · printed page 50. Original document
Release: draft-c8d50d87fae9. Source scope, review and corrections