156 Constitution of Kenya, 2010 (4) Subject to clause (5), the President shall assent to the Bill and cause it to be published within thirty days after the Bill is enacted by Parliament. (5) If a Bill to amend this Constitution proposes an amendment relating to a matter specified in Article 255 (1)— (a) the President shall, before assenting to the Bill, request the Independent Electoral and Boundaries Commission to conduct, within ninety days, a national referendum for approval of the Bill; and (b) within thirty days after the chairperson of the Independent Electoral and Boundaries Commission has certified to the President that the Bill has been approved in accordance with Article 255 (2), the President shall assent to the Bill and cause it to be published. Amendment by popular initiative. 257. (1) An amendment to this Constitution may be proposed by a popular initiative signed by at least one million registered voters. (2) A popular initiative for an amendment to this Constitution may be in the form of a general suggestion or a formulated draft Bill. (3) If a popular initiative is in the form of a general suggestion, the promoters of that popular initiative shall formulate it into a draft Bill. (4) The promoters of a popular initiative shall deliver the draft Bill and the supporting signatures to the Independent Electoral and Boundaries Commission, which shall verify that the initiative is supported by at least one million registered voters. (5) If the Independent Electoral and Boundaries Commission is satisfied that the initiative meets the requirements of this Article, the Commission shall submit the draft Bill to each county assembly for consideration within three months after the date it was submitted by the Commission. (6) If a county assembly approves the draft Bill within three months after the date it was submitted by the Commission, the speaker of the county assembly shall deliver a copy of the draft Bill jointly to the Speakers of the two Houses of Parliament, with a certificate that the county assembly has approved it. (7) If a draft Bill has been approved by a majority of the county assemblies, it shall be introduced in Parliament without delay.