Arkansas Code Title 14. Local Government § 14-236-104. Applicability to certain systems

(a)(1) No individual sewage disposal system in existence on July 1, 1977, nor any individual sewage disposal system installed after July 1, 1977, in a subdivision, wherein individual lots have been developed or sold for use with individual sewage disposal systems, for which a plat has been filed of record prior to July 1, 1977, shall be required to conform to more stringent specifications and requirements as to design, construction, density of improvements, lot size, and installation than those standards contained in any applicable, duly adopted, and published regulation in effect at the time of the platting of record of the subdivision.

(2) No individual sewage disposal system to be installed on a residential lot for which the Division of Environmental Health Protection of the Department of Health or its authorized agent has issued a construction permit on or before July 1, 1977, shall be required to conform to the design, construction, and installation provisions of this chapter, or any rules and regulations adopted pursuant thereto.

(3) In a subdivision for which a master plan has been approved by the Department of Health, the Arkansas Department of Environmental Quality, or the Division of Environmental Quality prior to July 1, 1977, or for which the Department of Health, the Arkansas Department of Environmental Quality, or the Division of Environmental Quality has otherwise previously issued its written approval for the installation of individual sewage disposal systems and where individual lots have been developed or sold in reliance upon the prior written approval, individual sewage disposal systems shall not be required to conform to more stringent specifications as to design, construction, and installation than those standards in effect at the time of or referred to in the prior written approval.