Article 72 — Size of Senatorial districts and Federal constituencies

No Senatorial district or Federal constituency shall fall within more than one State, and the boundaries of each district or constituency shall be as contiguous as possible and be such that the number of inhabitants thereof is as nearly equal to the population quota as is reasonably practicable. [Section 69(a) is altered by Constitution of the Federal Republic of Nigeria, 1999 (First Alteration Act) 2010] The Constitution of the Federal Republic of Nigeria Updated with the First, Second, Third, Fourth and Fifth Alterations73. Periodical review of Senatorial districts and Federal constituencies (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 3 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.