Plumbing and HVAC rules in Indiana

Indiana's Plumbing Commission licenses plumbing contractors, and plumbers hold journeyman or apprentice licenses.^{1, 2, 3}

Indiana's Professional Licensing Agency licenses plumbing but lists no heating and cooling license. Ask your city or county whether it licenses heating and cooling contractors.³

Your local building department can tell you which plumbing and mechanical codes apply where you live.

Indiana's Department of Homeland Security says one- and two-family homes fall under the local government's jurisdiction, and where there's no local jurisdiction, residential matters are a private civil issue.⁴

If your home has a backflow preventer, your water utility can tell you whether it needs testing and who can test it.