Indiana Code Title 36. Local Government § 36-7-4-410

Sec. 410. (a) ADVISORY.  The legislative body of any municipality located in a county having an advisory plan commission may, by ordinance, designate that county plan commission as the municipal plan commission.  Such an ordinance may also provide that the county board of zoning appeals has jurisdiction within the corporate boundaries of the municipality.  A county plan commission so designated has for that municipality all the powers and duties granted, under the advisory planning law, to a municipal plan commission.  Any municipality designating a county plan commission as its municipal plan commission may contract annually to pay the county a proportionate part of the expenses that is properly chargeable to the planning service rendered that municipality.  The county shall appropriate these payments to the county plan commission in addition to any sums budgeted for planning purposes.

(b) ADVISORY.  Whenever a municipality designates a county plan commission as its municipal plan commission under subsection (a), residents of that municipality are eligible to be appointed citizen members of the commission under section 208(a)(5) of this chapter.  Whenever a county board of zoning appeals has jurisdiction within the corporate boundaries of a municipality, residents of that municipality are eligible to be appointed citizen members of the board of zoning appeals under section 902 of this chapter.