The Child Support Division in the Office of the Attorney General (OAG) for most states provides child support services at little or no cost to mothers, fathers, and other individuals who request services. When providing child support services, the OAG represents the state and its interest in obtaining the financial support and involvement of both parents, and does not represent either parent in providing child support services. The OAG generally assists in (1) locating absent parents; (2) establishing paternity; (3) establishing, enforcing, and modifying child and medical support orders; and (4) collecting and distributing child support payments.

In Montana (MT), the Child Support Division operates under the Department of Public Health and Human Services (DPHHS) rather than the Office of the Attorney General (OAG). This division provides services to help parents secure financial support necessary for their children's well-being. Services are typically available at low or no cost and include locating absent parents, establishing paternity, and setting up, modifying, and enforcing child and medical support orders. Additionally, the division handles the collection and distribution of child support payments. While the Child Support Division works to ensure the involvement of both parents in supporting their children financially, it does not represent either parent in legal matters. Instead, it represents the state's interest in ensuring that children receive adequate support from their parents.