Establishing certain child support guidelines as a rebuttable +presumption in all child support cases, creating a parental equal and continuous +duty to pay; restricting court deviation from the guidelines, requiring written +findings of fact justifying the deviation and specifying certain factors for +consideration by the court in deviating from the guidelines; setting a self support+ reserve for inclusion in the guidelines to ensure maintenance of a minimum +standard of living based on the federal poverty guideline for a household +consisting of one adult; basing the schedule of basic child costs on certain economic +data representing estimates of total expenditures on child rearing costs; +providing for determination of the gross income of each parent, providing for +certain additions and deductions; authorizing the calculation of child +support for voluntarily unemployed or underemployed parents on a determination of+ potential income, restrictions; requiring the payment of maintenance to be +determined before the determination of the child support obligation; requiring +and providing for documentation of income statements of the parents; +including typical medical expenses in the basic child support obligation, +providing for calculation; child care and educational costs to be calculated as +additional costs; limiting the presumptive child support award; specifying the circumstances ending the duty to provide support; specifying certain requirements for modification of previous child support orders, +creating an affirmative defense in proceedings for nonpayment; specifying the +steps to be applied in determining the presumptive child support award of +obligors and providing a schedule; specifying certain requirements of income +deduction orders; placing the responsibility for the termination of income +deduction orders with the department of human services office of child support enforcement; requiring the revisor of statutes in consultation with +the house and senate research departments to prepare a report by a certain date+ on portions of state law conflicting with the child support guidelines +and to report change recommendations to the legislature; repealing the +existing child support guidelines and a certain provision prohibiting the factoring +of needs of subsequent children into support guidelines calculations (ra)