Supported living or supportive living refers to a range of services and community living arrangements (CLAs) designed with individuals with disabilities and their families to support disabled citizens to attain or retain their independence (see independent living) or interdependence in their local communities. Supported living is recorded in the history of the NASDDDS (National Association of State Directors of Developmental Disabilities Services), celebrating its 50th Anniversary. Community Supported Living Arrangements (CSLA) was a landmark federal multi-state demonstration to illustrate the federal role in community living in the US. Supported living is considered a core service or program of community living programs funded through federal-state-local partnerships. In the United States Supported living has been defined in diverse ways in the US, including early conceptualization in New York as integrated apartment living, and one early definition by the state of Oregon: "Supported living is defined as persons with disabilities living where and with whom they want, for as long as they want, with the ongoing support needed to sustain that choice." "Supported living...its simplicity is elegant. A person with a disability who requires long-term publicly funded, organized assistance, allies with an agency whose role is to arrange or provide whatever assistance is necessary for the person to live in a decent and secure home of the person's own." As a form of community living development, supported living became identified with certain approaches to services and community, including the own home initiatives. These services involved an understanding of "formal" and "informal support" (and their relationship), and changes from "group thinking" approaches (e.g., ten intermediate care facilities for 15 persons each) to planning services for, with and by the person "targeted to be served." For example: "Supportive living represents a movement within the (intellectual and) developmental disabilities field to provide support services in regular housing to adults with disabilities. Direct support services can be provided by paid staff, including live-in roommates or boarders, paid neighbors, a person hired as an attendant, a support worker or personal assistant, as well as more traditional agency and (modified) shift(live-in) staffing. Professionals, friends, families, and other "informal supports" can also assist people to live in their homes. Supported living may be joined to a movement toward decent, affordable and accessible housing." Supported living in the US has multiple known origins, including: The development of a service category of community living for people deemed capable of more independent living