Establishes when certain officials may inspect a residential onsite sewage system or nonresidential onsite sewage system. Allows a nonresidential onsite sewage system to be installed in a lot if at least one site on the lot is determined to be suitable for the installation of the nonresidential onsite sewage system. Provides that a county onsite waste management district (district) or local health department may not assess a periodic permit or inspection fee that exceeds the actual cost of the inspection incurred by the district or local health department on an onsite sewage system or an onsite residential sewage discharging disposal system.