To amend part D of title IV of the Social Security Act to improve the collection of child support arrears in interstate cases.

Amends title IV part D (Child Support and Establishment of Paternity) of the Social Security Act to prescribe procedural guidelines for the collection of child support arrears in interstate cases, including: (1) accelerated transmission of income withholding orders to employers; and (2) certification by the Secretary of Health and Human Services to the Secretary of the Treasury for collection on behalf of the State by the Internal Revenue Service of specified child support arrears owed in a case in which the amount is at least $5,000, and in which the State has undertaken collection proceedings, but income withholding is not available, or diligent efforts have not succeeded.