Miss. Code Ann. § 41-67-27: Miss. Code Ann. § 41-67-27

A person may not operate a business in or do business in the State of Mississippi as a manufacturer of components used in an individual on-site wastewater disposal system without holding a valid manufacturer's registration issued by the department. If any person is operating in the state as a manufacturer without certification by the department, the department, after due notice and opportunity for a hearing, may impose a monetary penalty not to exceed Ten Thousand Dollars ($10,000.00) for each violation.