Ark. Code Ann. § 14-42-305

Any proposed charter which is approved by a majority of the electors voting thereon, and with the additions of any such parts and as modified by any such alternative provisions as may be separately submitted and approved by those voting on any such parts and provisions, shall become the organic law of the municipality at the time fixed in the charter and shall supersede all laws affecting the organization and government of the municipality which are in conflict therewith.