Before any municipality, district, political subdivision, corporation, company, person, or any other public or private entity shall add a fluoride compound to a water supply intended or maintained for human consumption for the purpose of the reduction of the incidence of dental decay or any other purpose, the officials or individuals in responsible charge shall have obtained in writing a certificate from the State Department of Health indicating their proficiency to do so pursuant to these rules and regulations
179 Neb. Admin. Code, ch. 1, § 001