Some of the oldest structures in the U.S. Army's inventory are gaining new life and uses under the 2005 Base Realignment and Closure (BRAC) construction and renovation program on Fort Sam Houston, Texas. The restoration of historic structures on Fort Sam Houston will provide administrative space primarily for about 3,000 military personnel and civilian employees who support a variety of realigned agencies and commands. The Installation Management Command, or IMCOM (to include headquarters; IMCOM-West; U.S. Army Environmental Command; and Family and Morale, Welfare and Recreation Command), the Mission and Installation Contracting Command, and the Network Enterprise Technology Command, including the 106th. Signal Brigade, are all a part of the realignment. New facilities built through other BRAC projects are expected to bring an additional 9,000 individuals to Fort Sam Houston. These renovation projects include about two dozen structures, many of which are more than 75 years old and several that are more than a century old. As federal historic renovation efforts, the projects are proceeding within the parameters of the National Historic Preservation Act. A special Army Alternate Procedures agreement is also in place that outlines more specific management practices to ensure that the visual character of the buildings is maintained. Under this agreement, project teams consult regularly with the Advisory Council on Historic Preservation and the Texas Historical Commission. "Renovation projects like these require extraordinary effort because intricate architectural features must be preserved to achieve an appearance that is true to the original designs," said David Thomas, director of the Joint Program Management Office, which is overseeing the San Antonio BRAC construction and renovation program. "Extra care and diligence are also necessary in carrying out the work because of the delicate state of some of these buildings." All of the historic structures require extensive rehabilitation to become suitable for their new tenants. In most cases, existing interior partitions, electrical wiring, plumbing, climate control systems, and interior and exterior lighting fixtures need to be replaced. Stairways, ceilings, wooden floors, structural roof members, interior and exterior doors and windows are also being repaired, refinished or replaced.