The U.S. government is pleased to announce preparations for the 56th meeting of the Civil GPS Service Interface Committee (CGSIC). The meeting will be conducted 12-13 September at the Portland Convention Center in Portland Oregon in conjunction with the Institute of Navigation’s ION GNSS+ meeting. All CGSIC meetings are free and open to the public. Please join us for important briefings on the status of ongoing Global Positioning System programs with a Keynote Address by Brigadier General Stephen Whiting, Director of Air Force Integrated Air, Space, Cyberspace and ISR Operations. The CGSIC agenda in development can be found at http://www.gps.gov/cgsic/meetings/2016/