A custody arrangement refers to an agreement between parents or guardians regarding the care and well-being of their child. This can include decisions about where a child will live, how much time they will spend with each parent, and which parent will be responsible for making major decisions on behalf of the child such as healthcare and education. The custody arrangement is intended to ensure that the child has a stable and nurturing environment in which to grow up, while also taking into account the needs and rights of both parents.