Co-parenting is when both parents have joint and physical custody. With co-parenting, both parents maintain equal rights and responsibility and must communicate regularly to arrange pick ups/drop offs, child care, school events, etc…

Parallel parenting is a method of co-parenting but when there is still animosity between the parents and regular communication is not possible. There is typically a pre-agreed upon schedule that shares the parents’ time equally and communication is conducted through impersonal means, like through an email.

Source: Divorce Magazine, “What is the difference between co-parenting and parallel parenting?”, accessed Dec 4, 2016