Ark. Code Ann. § 8-5-203: Unlawful actions

It shall be unlawful for any municipality, governmental subdivision, public or private corporation, or other person to operate a public or private wastewater treatment plant unless the competency of the operator is duly licensed by the Division of Environmental Quality under the provisions of this subchapter. It shall further be unlawful for any person to perform the duties of an operator of any such wastewater treatment plant without being duly licensed under this subchapter.