An Act amending the act of January 24, 1966 (1965 P.L.1535, No.537), entitled "An act providing for the planning and regulation of community sewage systems and individual sewage systems; requiring municipalities to submit plans for systems in their jurisdiction; authorizing grants; requiring permits for persons installing such systems; requiring disclosure statements in certain land sale contracts; authorizing the Department of Environmental Resources to adopt and administer rules, regulations, standards and procedures; creating an advisory committee; providing remedies and prescribing penalties," further providing for official plans.