The accessibility of work support programs at one-stop centers was examined in a study during which 33 telephone directors or managers of one-stop centers in 22 states were interviewed by telephone. The interviews established the existence of extensive differences between one-stop centers from the standpoint of all aspects of their operation, including resources and program accessibility. Collocation or a close working relationship with Temporary Assistance for Needy Families agencies emerged as an important factor for accessibility, particularly for programs such as publicly funded health insurance, food stamps, and cash assistance. One-stop director's attitudes about the provision of work supports also affected programs' accessibility. Rural one-stops and those in smaller counties tended to have fewer staff and other resources and were often geographically isolated. The combination of these factors appeared to make it harder for rural areas to offer access to many work supports. Lack of resources, staff, facility space, child care, and transportation and attitude or turf issues were identified as significant barriers to service provision. Despite these barriers, many sites had created innovative approaches to providing a vast array of services to one-stop customers. (A description of the study methodology is appended along with tables detailing the number of one-stops in the sample by region and by county size. Twenty-eight endnotes are listed.) (MN)