To authorize the Smithsonian Institution to provide for additional facilities for the Cooper-Hewitt Museum, and for other purposes.

Directs the Board of Regents of the Smithsonian Institution to construct, expand, and renovate facilities at the Cooper-Hewitt Museum in New York, New York, in accordance with the master plan for such project.

Authorizes appropriations to the Board for FY 1990 and subsequent fiscal years in an amount equal to one-half the total cost of the project. Prohibits the use of appropriations until the Comptroller General determines that one-half of the total project cost is available to the Board from non-Federal sources.

Provides for transfer of any portion of such funds to the General Services Administration to carry out such project.

Provides that the Cooper-Hewitt Museum shall also be known as the National Museum of Design.