The Child Support Program automatically sends income withholding for support notices to a parent's employer when the employer is known. If your case involves the Department of Revenue, Office of.Child Support Enforcement, make 1 extra set of copies and an extra stamped envelope (addressed to:. Check out new resources available to assist parents and families on the Child Support Program Resources for Parents page! Child Support Guidelines Worksheet. Form Number 12.902(e). The following guidelines schedule shall be applied to the combined net income to determine the minimum child support need. The IWO is the OMBapproved form (PDF) used for income withholding in tribal, intrastate, and interstate cases as well as all child support orders. Two options are available to help you pay child support online.