Ark. Code Ann. § 14-37-108: Application for advancement between census periods

(a) The Auditor of State, Secretary of State, and Attorney General may declare incorporated towns cities of the second class, and cities of the second class cities of the first class, between the periods fixed in § 14-37-107(a) , upon application from any incorporated town or city of the second class, accompanied by a resolution adopted by the town or city council, asking to be so declared a city of the first or second class, as the case may be.

(b) The application shall be accompanied with satisfactory evidence showing the population of the town or city to be large enough to entitle it to such advancement.