This monograph summarizes national and state level changes in employment patterns for individuals with mental retardation and other developmental disabilities. It presents longitudinal data from state mental retardation/developmental disability (MR/DD) agencies covering 8 years between FY88 and FY96, and for federal/state vocational rehabilitation services covering the years FY85 to FY95. Data indicate: (1) MR/DD agencies have expanded their capacity to provide day and employment services; (2) MR/DD agencies have reported an increase in the number and percent of individuals in integrated employment; (3) there is some suggestion that integrated employment has been an add-on service rather than a true systems change; (4) the service delivery system for persons with disabilities in day and employment services is changing; (5) within the vocational rehabilitation system, there has been a steady improvement in employment outcomes for persons with disabilities; (6) state investment in employment outcomes varies among states, based on a standardized rate measure of the number of individuals supported in integrated employment per 100,000 state population; and (7) there is no significant correlation between the integrated employment rates for MR/DD agencies and the rates of closure into competitive employment for vocational rehabilitation agencies. The appendix includes individual state profiles. (Contains 15 references.) (CR)