Upon June 20, 1995, this section shall be applicable to all existing and future approvals of individual sewage disposal system applications, renewals, tests, determinations and/or data. Tests, determinations and/or data shall be considered valid for a period of five (5) years from the time of initial certification of this data by the department of environmental management or five (5) years from the date of initial approval by the department of environmental management of any individual sewage disposal system application design or individual sewage disposal system subdivision suitability where the tests, determinations and/or data were used, whichever occurred most recently. At any time after the initial five (5) year period all persons may renew their tests, determinations and/or data by submitting to the department of environmental management:
R.I. Gen. Laws § 23-19.5-9.1