http://thomas.loc.gov/cgi-bin/bdquery/z?d113:h.r.2495:
The first paragraph of the summary provided by the Library of Congress:
"Amends the Department of Energy High-End Computing Revitalization Act of 2004 with respect to: (1) exascale computing (computing system performance at or near 10 to the 18th power floating point operations per second); and (2) a high-end computing sytem with performance substantially exceeding that of systems commonly available for advanced scientific and engineering applications."
American Super Computing Leadership Act (2013)
thomas.loc.gov