Under Kansas law there are basically two forms of custody. Joint custody, which is the preferred form under Kansas law or sole custody. Joint custody is often misunderstood. Under Kansas law, joint custody means that both parents have equal say in making major decisions about their children and their upbringing. What most people are referring to when they discuss custody is actually categorized as “residency” by laws of the state of Kansas. Residency refers to where the child or children will primarily reside.