Indiana Code Title 36. Local Government § 36-1.5-4-39

Sec. 39. (a) If a law does not permit the reorganized political subdivision to exercise generally throughout the territory of the reorganized political subdivision a power that any of the reorganizing political subdivisions had before the reorganization, the reorganized political subdivision may exercise the power outside the original territory of the reorganizing political subdivision only by following the laws applicable to the expansion of the service area of the reorganizing political subdivision.

(b) Subject to subsection (a), a reorganized political subdivision that results from a reorganization under this chapter must continue to carry out the duties imposed by Indiana law on the reorganizing political subdivisions that combined to form the reorganized political subdivision.