U.S. to Host ICG-10 Meeting, November 1-6, 2015 ICG logo over Rocky Mountains

The United States is pleased to host the 10th meeting of the UN-affiliated International Committee on GNSS (ICG) in Boulder, Colorado.

Visit ICG-10 website

Multilingual Content

To improve global understanding about GPS, we are pleased to offer key portions of this website in multiple languages. Please note that some pages link back to English content.

International GPS User Support

NAVCEN logo The U.S. Coast Guard Navigation Center (NAVCEN) is the designated point of contact within the U.S. government for GPS user support to civilians outside the United States, including international civil aviation users.

NAVCEN disseminates information to the public about GPS operations, including constellation status, service degradations and outages, and known interference events.

If you are a civilian user experiencing problems with the GPS satellite service (e.g., outages or interference), please report the issue to NAVCEN.

NAVCEN also administers the Civil GPS Service Interface Committee (CGSIC) on behalf of the Department of Transportation. CGSIC includes an International Information Subcommittee that convenes regularly at locations throughout the world. Learn more