Provides that it is the continuing policy of the state to recognize natural gas as "clean energy" or "green energy" for purposes of any state or federal program that provides funding or other incentives for: (1) clean energy initiatives or projects; (2) green energy initiatives or projects; or (3) any similarly designated initiatives or projects; in Indiana. Defines "clean energy" or "green energy" for these purposes. Specifies that the term: (1) includes natural gas; and (2) does not affect certain existing definitions set forth in the Indiana Code.