Ind. Code § 8-1.5-5-1
This chapter applies to each:
(2) county that:
(B) receives notification from the department of environmental management that the county will be subject to storm water regulation under 327 IAC 15-13;
that adopts the provisions of this chapter by ordinance.
As added by P.L.125-1987, SEC.1. Amended by P.L.282-2003, SEC.2.