This report contains the results of a nationwide survey of state and territorial regulatory agencies. The purpose of the study was to gather information on day care center licensing and regulation. In May 1991, questionnaires were sent to the central day care regulatory agency in each of 53 states and territories. In an introductory section of the report, frequently asked questions about day care center regulation are presented together with answers drawn from the study's data. The bulk of the report is a listing by state of the information gathered from the questionnaire. This information is presented in 14 categories: (1) regulations and requirements; (2) prescreening, training, and staff qualifications; (3) complaint procedures; (4) documentation on children; (5) transportation; (6) discipline; (7) infant care programs; (8) school-age programs; (9) regulations concerning children with special needs; (10) programs for sick children; (11) subsidized child care; (12) child abuse and neglect; (13) a list of local offices; and (14) pending legislation. It is concluded that even though all the states and territories require day care center licensing, there is no uniformity in the regulation of day care centers. (BC)