Following ratification of the United Nations Convention on the Rights of the Child in most countries other than the United States (which has not ratified the convention), terms such as "custody" and "access" (known as "visitation" in the United States) have been superseded in many countries by the concepts of "residence" and "contact". Instead of a parent having "custody" of or "access" to a child, a child is now said to "reside" or have "contact" with a parent. For a discussion of the new international standards, see parental responsibility.