The budget request of the U.S. National Science Foundation (NSF) for fiscal year (FY) 2009 focuses attention on basic research, establishes and supports several cross-foundation investment projects designed to have a transformative impact across science and engineering, and puts foundation activities back on track to double their research budgets by the next decade.

The foundation's total proposed budget is US$6.85 billion, an increase of 13% over that enacted for FY 2008. Most of this funding increase goes to NSF's Research and Related Activities (R&RA) account, which, at $5.59 billion, is $772.5 million above the FY 2008 enacted amount.