This report provides findings on enrollment based on total statewide counts of enrolled children under three enrolled in service plans on December 1, 1993, from four provider surveys and two agency management information systems matched with Birth Certificate and Medicaid information in the First Steps Database. Qualitative findings emerge from in-depth, structured interviews conducted in April and May 1994 in seven counties with parents, resources coordinators, private and public service providers. The report finds that enrollment rates for children in Washington are comparable to the rate found for children with limitations in some daily activity in the National Health Interview Survey. The enrollment rate is higher among children of Medicaid-eligible families and for low birth weight babies and for children of substance-abusing mothers than for the general population.