Ind. Code § 34-28-8-9
Notwithstanding section 6 of this chapter, this chapter does not prohibit a public or private employer from:
(2) enforcing a regulation or prohibition adopted under subdivision (1).
However, a regulation or prohibition adopted under subdivision (1) may not apply to a firearm stored or transported in accordance with IC 34-28-7 .
As added by P.L.17-2011, SEC.2.