Sec. 29. (a) As used in this section:

     “Manufactured home” means a manufactured home as that term is defined in 42 U.S.C. § 5402(6) as that statute was adopted and in effect on January 1, 1988.

     “Industrialized residential structure” means a structure that is both an industrialized building system (as defined in IC 22-12-1-14) and a one (1) or two (2) family private residence.

     (b) Sales of manufactured homes or industrialized residential structures are exempt from the state gross retail tax to the extent that the gross retail income from the sales is not attributable to the cost of materials used in manufacturing the manufactured home or industrialized residential structure.

     (c) For purposes of this section, the part of the gross retail income not attributable to the cost of materials used in manufacturing a manufactured home or an industrialized residential structure is thirty-five percent (35%) of the gross retail income derived from the sale of the manufactured home or industrialized residential structure.

     (d) The gross retail income derived from the sale of a preowned manufactured home is exempt from the state gross retail tax.

As added by Acts 1980, P.L.52, SEC.1. Amended by P.L.245-1987, SEC.7; P.L.86-1989, SEC.2.