The National Science Foundation (NSF) is moving its Data Center IT servers to the Foundation’s new headquarters in Alexandria, Virginia, from June 30 at 8:00 PM EDT through July 4 at 6:00 PM EDT, to prepare for NSF staff relocation in August 2017. Due to the move of NSF's Data Center, NSF website, FastLane, and Research.gov will be unavailable from Friday, June 30 at 8:00 PM EDT until Tuesday, July 4 at 6:00 PM EDT. During this outage period, there will be no access to these websites, proposals cannot be submitted in FastLane, and project reports and cash requests cannot be submitted in Research.gov. However, previously saved information and uploaded documents in FastLane and Research.gov, including in-process proposals and reports, will be accessible after the Data Center move. For additional information about NSF’s relocation, please see https://www.nsf.gov/pubs/issuances/in139.jsp.