research and technical services (special foreign currency program)

research and technical services (special foreign currency program) For purchase of foreign currencies which the Treasury Department determines to be excess to the normal requirements of the United States, for necessary expenses of the National Bureau of Standards, as authorized by law, $500,000, to remain available until expended: Provided, That this appropriation shall be available, in addition to other appropriations to the Bureau, for the purchase of the foregoing currencies.