This study examined the assessment and prescriptive practices used in augmentative and alternative communication (AAC) efforts throughout the country. Project Directors (N=50) of projects funded under the Technology-Related Assistance for Individuals with Disabilities Act were surveyed. The survey instrument was designed to assess Project Directors' knowledge of AAC assessment and prescriptive practices, focusing particularly on the extent of family involvement in existing high-technology AAC assistive technology prescription practices for children, (ages birth to 3 years) with disabilities. A total of 40 surveys were returned. Information was obtained on: (1) service provided during and subsequent to the AAC assessment process; (2) the role of families; (3) general factors considered during evaluation; (4) family issues; (5) child characteristics; (6) technology characteristics; and (7) service system characteristics. Analysis indicated that family issues are considered by many states in AAC assessment processes, though to a lesser extent than more traditional factors such as child, technology, and service system characteristics. Seven tables detail study findings. (Contains 96 references.) (DB)