Neb. Rev. Stat. § 77-2704.63

(1) Sales and use taxes shall not be imposed on the gross receipts from the sale, use, or other consumption of amounts charged to participate in a youth sports event, youth sports league, or youth competitive educational activity by political subdivisions or organizations that are exempt from income tax under section 501(c)(3) of the Internal Revenue Code. (2) For purposes of this section: (a) Competitive educational activity means a tournament or a single competition that occurs over a limited period of time annually or intermittently where the participants engage in a competitive educational activity; (b) Sports event means a tournament or a single competition that occurs over a limited period of time annually or intermittently where the participants engage in a sport; (c) Sports league means an organized series of sports competitions taking place over several weeks or months between teams or individuals that are members of the league; and (d) Youth sports event, youth sports league, or youth competitive educational activity means an event, league, or activity that is restricted to participants who are less than nineteen years of age.