(a) General. When used in this article, or in the administration of 11-13KK-1 et seq. of this code, terms defined in subsection (b) have the meanings ascribed to them by this section, unless a different meaning is clearly required by either the context in which the term is used, or by specific definition in 11-13KK-1 et seq. of this code.
(b) Terms defined.
(1) “Affiliated group” means any affiliated group within the meaning of section 1504(a) of the Internal Revenue Code, or any similar group defined under a similar provision of state, local, or foreign law, except that section 1504 of the Internal Revenue Code shall be applied by substituting “more than 50 percent” for “at least 80 percent” each place it appears in that section.