Foster Care Definition: Placements, Timelines, and Exits

Foster care is a government-run arrangement in which a child who cannot safely remain at home is placed in the temporary legal custody of the state and cared for by licensed adults while a written plan works toward a permanent home. The foster care definition in federal law is built from parts rather than a single sentence: a case plan, maintenance payments, and a system of regular court reviews that together describe a temporary custody arrangement with a permanency goal attached. As of September 2024, roughly 329,000 children were in foster care across the United States.¹

What Federal Law Actually Defines

The controlling federal definition sits in 42 U.S.C. § 675, part of the Social Security Act. Rather than defining “foster care” in one line, the statute defines the pieces that make the system work.²

The case plan is the backbone of every placement. It must be a written document that describes the type of home or facility where the child will live, explains why the placement is safe and appropriate, and lays out services for the parents, the child, and the foster family. Those services aim either to fix the problems that caused the removal so the child can go home, or to move the child toward another permanent arrangement such as adoption or guardianship. For children 14 and older, the plan has to be developed with the child’s input, and the youth can choose up to two people to sit on the planning team.

Because the state holds legal custody, foster parents and facility staff handle daily care but generally cannot make major legal or medical decisions on their own. Those decisions rest with the agency or the court. Foster parents are caregivers operating under state authority, not substitute parents with full legal rights.

How a Child Enters Foster Care

There are two routes in. Most children are removed from their homes after a judge decides staying would be dangerous. A smaller number enter through voluntary placement agreements, where a parent or guardian asks the agency for help. If a voluntary placement lasts more than 180 days, a court has to review it and confirm the arrangement serves the child’s best interests.³

Before removal, federal law generally requires the state to make “reasonable efforts” to keep the family together. That can mean connecting parents with substance abuse treatment, mental health counseling, housing assistance, or other supports designed to eliminate the safety concern without separating the child. The child’s health and safety must be the primary concern throughout.⁴

A court can bypass the reasonable-efforts requirement in defined situations: a parent has subjected the child to aggravated circumstances such as torture or chronic abuse, killed or seriously injured another child, or had parental rights to a sibling involuntarily terminated. In those cases, the agency moves directly toward finding the child a permanent placement, and a permanency hearing must happen within 30 days.⁴

Where Children Are Placed

The type of placement depends on the child’s age, needs, existing family connections, and local availability. Every option is subject to state licensing or approval.

Kinship care, with a relative or close family friend, is generally the preferred option because it preserves existing bonds. Kinship caregivers may need to meet the same licensing standards as other foster parents, though some states allow unlicensed relative placements with modified requirements.
Non-relative foster family homes, where licensed individuals or couples with no prior relationship to the child provide care in their own home. This is the most common placement type.
Therapeutic foster care, designed for children with significant emotional, behavioral, or medical needs. The foster parents receive specialized training, and additional support services are built in.
Group homes and residential facilities, which are staffed and house multiple children. Federal policy favors family-based placements, so group care is generally a last resort.
Respite care, lasting from a few days to about two weeks, so regular foster parents can take a break. Respite caregivers typically must meet the same background check and training requirements as full-time foster parents.

Who Holds Which Role

Several people share responsibility for a child in foster care, and the lines between them are drawn more sharply than most people realize.

Biological parents keep their legal rights unless and until a court formally terminates them. Even after removal, parents usually work with the agency on a service plan aimed at resolving whatever caused the removal, often with court-ordered visitation and expected participation in counseling or parenting classes. The standard for terminating parental rights is high, generally requiring clear and convincing evidence that termination serves the child’s best interests.

Foster parents provide the daily reality: meals, supervision, transportation to school, emotional support. They do not hold legal custody and usually cannot authorize major medical procedures or change the child’s school without agency approval. Their role is temporary by design, though some foster parents eventually adopt children placed with them.

Caseworkers employed by the state agency manage the legal and logistical side of each case. They coordinate visits between the child and biological parents, monitor placement safety, develop the case plan, and report to the court on progress. In many jurisdictions, a Guardian ad Litem or Court Appointed Special Advocate independently represents the child’s interests and makes recommendations to the judge, focused exclusively on what is best for the child, separate from what either the parents or the agency want.

The Timelines That Make It Temporary

Foster care is meant to be temporary, and federal law enforces that through mandatory timelines. Before the Adoption and Safe Families Act of 1997, children routinely spent years in care with no permanency deadline.

Every child’s case must be reviewed at least once every six months, either by a court or through a formal administrative review. The review examines whether the child is safe, whether the current placement is still appropriate, whether the parents are making progress, and when the child might be able to leave care.²

Within 12 months of a child entering care, and every 12 months after that, a permanency hearing takes place in court. This hearing sets the permanency plan: return home, adoption, legal guardianship, or, for youth 16 and older in limited circumstances, another planned permanent living arrangement.²

The strictest deadline applies to termination of parental rights. When a child has been in foster care for 15 of the most recent 22 months, the state must file a petition to terminate the parents’ rights and simultaneously begin recruiting an adoptive family. Federal law allows three exceptions: the child is living with a relative (at the state’s option), the agency has documented a compelling reason why termination would not be in the child’s best interests, or the state has not yet provided the services the family needs to make the home safe.²

How Foster Care Ends

The system is oriented toward getting children out of it. Federal law recognizes several permanent outcomes, and caseworkers are supposed to be working toward one from the moment a child enters care.

Reunification

Returning the child to their biological family is the first priority in most cases. Reunification happens when a court determines the conditions that led to removal have been resolved and the home is now safe. The parents complete their court-ordered service plan, the agency verifies the improvements, and the judge restores custody. In 2024, about 58% of children who left foster care were reunified with their parents or primary caregivers within 12 months of entering care.

Adoption

When reunification is not possible or safe, the court may move toward adoption. This requires terminating the biological parents’ rights permanently, after which a new family assumes full legal responsibility. Adoption through foster care is finalized by a court decree. Many states offer ongoing adoption assistance payments to families who adopt children from foster care, particularly children with special needs.

Legal Guardianship

Guardianship provides a middle path. A third party, often a relative, takes permanent custody of the child without terminating the biological parents’ legal rights entirely. This option is sometimes preferred when the child has a strong bond with a relative caregiver but terminating parental rights would not serve the child’s interests. The Fostering Connections to Success and Increasing Adoptions Act of 2008 created a federal option for kinship guardianship assistance payments to support these arrangements.⁵

Aging Out

Youth who reach adulthood without being reunified, adopted, or placed in guardianship age out of the system. In most states that happens at 18. Over 36 states and the District of Columbia have used a provision in the Fostering Connections Act to extend foster care eligibility to age 21 for youth who are working, in school, or have a medical condition that prevents those activities.⁵ Young people who age out without a support network face disproportionately high rates of homelessness, unemployment, and incarceration.

How Foster Families Are Paid

Foster parents do not work for free. Federal law defines “foster care maintenance payments” as money to cover food, clothing, shelter, daily supervision, school supplies, personal items, liability insurance for the child, and reasonable travel for visitation and school stability.² For children in institutional care, the payments also cover reasonable administrative and operating costs of the facility.

What the payments are not meant to be is a salary. Federal policy is explicit that maintenance payments do not reimburse foster parents for exercising ordinary parenting duties. Services like counseling, therapy, family reunification planning, and psychological testing are also excluded from maintenance payments regardless of who provides them.⁶

Dollar amounts vary dramatically by state and by the child’s age. Monthly basic maintenance payments for a school-aged child range roughly from under $200 to over $1,200 depending on the state. Many states also provide supplemental payments for clothing, infant supplies, or children with higher-level needs. Children in therapeutic foster care placements typically receive higher payment rates to account for the additional training and supervision.

To qualify for federal reimbursement under Title IV-E, a child must have entered care through a judicial determination or voluntary agreement, been removed from a home considered in need, and been placed in a licensed or approved foster care setting. States that meet these requirements receive partial federal funding for maintenance payments and cover the rest themselves.

Native American Children and ICWA

The general rules above are modified when a Native American child may enter foster care. The Indian Child Welfare Act exists because, historically, Native children were removed from their families and communities at vastly disproportionate rates and placed in non-Native homes, causing enormous cultural harm. The law creates a higher bar for removal and a specific hierarchy for placement.

Before any foster care placement of a Native child can be ordered, the state must show the court it made “active efforts” to provide services designed to keep the family together, and that those efforts failed. That is a higher standard than the “reasonable efforts” required for other children. The court must also hear testimony from a qualified expert witness that keeping the child with the parent would likely result in serious emotional or physical harm.⁷

If a Native child does enter foster care, federal law establishes a placement preference order, in priority:

A member of the child’s extended family
A foster home licensed or approved by the child’s tribe
A Native American foster home licensed by a non-tribal authority
A tribal institution or organization with an appropriate program for the child

The placement must also be the least restrictive setting that resembles a family and is within reasonable proximity to the child’s home. A tribe can establish its own order of preference by resolution, and the court must follow the tribe’s order as long as it meets the least-restrictive-setting standard.⁸

1
Administration for Children and Families. The AFCARS Dashboard
2
Office of the Law Revision Counsel. 42 U.S. Code 675 – Definitions
3
Office of the Law Revision Counsel. 42 U.S. Code 672 – Foster Care Maintenance Payments Program
4
GovInfo. 42 U.S. Code 671 – State Plan for Foster Care and Adoption Assistance
5
Administration for Children and Families. Implementation of the Fostering Connections to Success and Increasing Adoptions Act of 2008
6
Child Welfare Policy Manual. Foster Care Maintenance Payments Program – Allowable Costs
7
Office of the Law Revision Counsel. 25 U.S. Code 1912 – Pending Court Proceedings
8
Office of the Law Revision Counsel. 25 U.S. Code 1915 – Placement of Indian Children