In a child custody case, what document outlines how the parents will share responsibilities?

The correct choice, a parenting plan, is a crucial document in child custody cases as it specifically details how parents will share responsibilities for their child's upbringing. This document typically outlines key aspects such as decision-making authority regarding education, healthcare, and religious upbringing, as well as how day-to-day responsibilities will be divided. Additionally, it often includes provisions about communication between parents, the schedule for parenting time, and how changes or disputes will be handled.

A custody order serves to legally establish custody arrangements but does not typically contain detailed guidelines for parental responsibilities and cooperation. A visitation schedule focuses more narrowly on the time a non-custodial parent has with the child, without encompassing the broader responsibilities of each parent. Lastly, a support agreement is concerned primarily with the financial obligations related to child support and does not address parenting responsibilities or day-to-day care. Therefore, the comprehensive nature of the parenting plan makes it the foundational document for outlining how parents will work together concerning their child.