Neb. Rev. Stat. § 42-364.16: Neb. Rev. Stat. § 42-364.16

The Supreme Court shall provide by court rule, as a rebuttable presumption, guidelines for the establishment of all child support obligations. Child support shall be established in accordance with such guidelines, which guidelines are presumed to be in the best interests of the child, unless the court finds that one or both parties have produced sufficient evidence to rebut the presumption that the application of the guidelines will result in a fair and equitable child support order.