Child support services are mandatory for Nebraskans on public benefits and available at request for other families. The state authorities will assist in establishing paternity, finding non-custodial parents and providing guidelines for the appropriate level of child support. A man can disprove paternity, even if he agreed to paternity at the birth of the child through DNA testing. This child support order can be modified every three years or if there is a significant change in the financial circumstance of either parent. Nebraska law only allows the State Review and Modification Unit an adjustment to less than 10% to the court order.