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Department of Transportation


Serve the United States by ensuring a fast, safe, efficient, accessible and convenient transportation system that meets our vital national interests and enhances the quality of life of the American people, today and into the future.
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GPS Roles and Responsibilities

  • Serves as the lead civilian agency within the U.S. government on GPS-related issues.
  • Co-chairs the National Executive Committee for Space-Based Positioning, Navigation, and Timing and its subordinate bodies. Learn more about the committee
  • Provides resources to the Department of Defense for new, civil-unique GPS capabilities. Learn more about GPS funding
  • Operates the Wide Area Augmentation System (WAAS) to support aviation safety and efficiency.
    WAAS diagram
    Learn more about WAAS
  • Chairs the Civil GPS Service Interface Committee (CGSIC). Learn more about CGSIC
  • Applies GPS technology to a broad variety of governmental activities, including the development of the Next Generation Air Transportation System (NextGen) and intelligent transportation systems.

Related Pages

GPS Leadership

These links lead to other government websites:

Relevant Units

These links lead to other government websites:

Point of Contact

Karen Van Dyke
Director, Positioning, Navigation and Timing Programs
Office of the Assistant Secretary for Research and Technology
U.S. Department of Transportation
(202) 366-3180

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