Two national examples of this trend toward reclaimed wood are the Building Materials Reuse Association, which is a nonprofit educational organization with a mission to facilitate the salvage and reuse of building materials, and more locally, the Habitat for Humanity ReStores, which are retail outlets where used and surplus building materials are sold. Approximately 30% of sales are wood-based materials. Nationally, more than 55 million tons of wood waste is generated on an annual basis. About half of this material is of acceptable size, quality, and condition to be considered available for recovery. Clearly, the amount of waste wood available for recovery in the U.S. is a substantial figure.