The "National Child Count of Children and Youth who are Deaf-Blind" is the first and longest running registry and knowledge base of children who are deaf-blind in the world. It represents a 25 year collaborative effort between the National Consortium on Deaf-Blindness (NCDB), its predecessors and each state/multi-state deaf-blind project throughout the country, as well as those projects funded in the Pacific Trust territories--the Virgin Islands and Puerto Rico. It has been collaboratively designed and implemented as the common vehicle to meet federal grant requirements for both the state/multistate and national technical assistance projects and serves as a common data collection and reporting mechanism for use across the country. Consistent with the priorities under which NCDB, its predecessors, and the state/multi-state projects are funded, this national child count is used to identify national and state technical assistance needs for children and youth who are deaf-blind, their families, and the service providers and systems which serve them. This is the first year in which the number of children/youth for which "Further Testing Needed" category has been analyzed for multiple years. The number of children/youth for which further vision and/or hearing testing is needed has decreased from 2,873 in 2007 to 772 in 2008. This 2008 report provides the opportunity for early identification, intervention and the provision of instructional services aimed at the unique needs of young children and students who are deaf-blind and is a critical component that cannot be lost. [For the 2007 Deaf-Blind Child Count, see ED545208.]