Sec. 11. (a) "Public agency" means:
(1) a state agency (as defined in IC 4-13-1-1);
(2) a state educational institution;
(3) a unit (as defined in IC 36-1-2-23);
(4) a body corporate and politic created by state statute;
(5) a school corporation (as defined in IC 20-26-2-4);
(6) a conservancy district established for a purpose described in IC 14-33-1-1(a)(4) or IC 14-33-1-1(a)(5);
(7) a fire protection district established under IC 36-8-11;
(8) a department of aviation established under IC 8-22-2-1(a); or
(9) an airport authority established under IC 8-22-3-1.
(b) The term does not include the Indiana department of transportation.