Sec. 15. An occupation for which a person is licensed, certified, or registered by the Indiana plumbing commission (IC 25-28.5-1-3) is a regulated occupation under IC 25-1-7. As added by P.L.3-2014, SEC.5.
Indiana plumbing commission
Ind. Code § 25-0.5-8-15, under "Regulated Occupation" for Purposes of IC 25-1-7.
Ind. Code § 25-0.5-8-15