AAMR Levels of Support

Intermittent: "as needed" Intermittent supports are characterized by their episodic nature. A person does not always nee the support, or short-term supports are needed (for example, during a transition period). Intermittent supports can be either high or low intensity. mild mental retardation

Limited: Characterized by consistency over time. These supports may be time-limited but not intermittent. Limited support may require fewer staff members or be less costly than more intense levels of support. moderate mental retardation
Extensive: Characterized by regular involvement with the individual in at least some environments. For example, a person may need daily assistance in home and school environments. Extensive supports are not time-limited. severe mental retardation
Pervasive: Characterized by constant need for support that is high intensity, provided across environments, or are life-sustaining in nature. Pervasive supports typically involve more staff members and are more intrusive than other supports.