ABSTRACTThis study examined U.S. state and territorial boards of nursing approaches to the regulation of the use of: unlicensed assistive personnel (UAP) in acute care hospitals; state and jurisdictional authority, oversight and disciplinary action related to registered nurse (RN) delegation, supervision and assignment; educational preparation requirements for UAP; and future projections for their use. A survey was administered to 53 state and territorial boards of nursing officials in 1998. A majority of the states reported that they had regulations/guidelines for RN's who supervised UAP and regulations that protected the use of the RN title. Few states used the American Nurses Association or National Council of State Boards of Nursing definitions for delegation, supervision, or assignment. The majority have formulated their own definitions. The majority of states reported no standardized curriculum in place for UAP employed in acute care hospitals. More than half of the states reported that no plans existed for developing a curriculum.