Sec. 30. "Authority" refers to the following:
(1) For purposes of IC 16-22-6, the authority created under IC 16-22-6-2.
(2) For purposes of IC 16-22-7, the authority created under IC 16-22-7-5.
(3) For purposes of IC 16-22:
(A) the authority created under IC 16-22-6-2; or
(B) the county building authority provided for in IC 36-9-13.