Neb. Rev. Stat. § 77-2704.36

(1) Sales and use tax shall not be imposed on the gross receipts from the sale, lease, or rental of: (a) Depreciable agricultural machinery and equipment purchased, leased, or rented on or after January 1, 1993, for use in commercial agriculture; or (b) Net wrap, baling wire, and twine purchased for use in commercial agriculture. (2) For purposes of this section: (a)(i) Agricultural machinery and equipment means tangible personal property that is used directly in (A) cultivating or harvesting a crop, (B) raising or caring for animal life, (C) protecting the health and welfare of animal life, including fans, curtains, and climate control equipment within livestock buildings, or (D) collecting or processing an agricultural product on a farm or ranch, regardless of the degree of attachment to any real property; and (ii) Agricultural machinery and equipment includes, but is not limited to, header trailers, head haulers, header transports, and seed tender trailers and excludes any current tractor model as defined in section 2-2701.01">2-2701.01 not permitted for sale in Nebraska pursuant to sections 2-2701 to 2-2711 ; (b) Baling wire means wire used in the baling of livestock feed or bedding; (c) Net wrap means plastic wrap used in the baling of livestock feed or bedding; and (d) Twine means a strong string of two or more strands twisted together used in the baling of livestock feed or bedding.