Statement
By The President Regarding
The United States' Decision To Stop Degrading
Global
Positioning System Accuracy
THE WHITE HOUSE
Office of the Press Secretary
For Immediate Release May 1, 2000
Today,
I am pleased to announce that the United States will stop
the intentional degradation of the Global Positioning System
(GPS) signals available to the public beginning at midnight
tonight. We call this degradation feature Selective Availability
(SA). This will mean that civilian users of GPS will be
able to pinpoint locations up to ten times more accurately
than they do now. GPS is a dual-use, satellite-based system
that provides accurate location and timing data to users
worldwide. My March 1996 Presidential Decision Directive
included in the goals for GPS to: 'encourage acceptance
and integration of GPS into peaceful civil, commercial and
scientific applications worldwide; and to encourage private
sector investment in and use of U.S. GPS technologies and
services.' To meet these goals, I committed the U.S. to
discontinuing the use of SA by 2006 with an annual assessment
of its continued use beginning this year.
The
decision to discontinue SA is the latest measure in an on-going
effort to make GPS more responsive to civil and commercial
users worldwide. Last year, Vice President Gore announced
our plans to modernize GPS by adding two new civilian signals
to enhance the civil and commercial service. This initiative
is on-track and the budget further advances modernization
by incorporating some of the new features on up to 18 additional
satellites that are already awaiting launch or are in production.
We will continue to provide all of these capabilities to
worldwide users free of charge.
My
decision to discontinue SA was based upon a recommendation
by the Secretary of Defense in coordination with the Departments
of State, Transportation, Commerce, the Director of Central
Intelligence, and other Executive Branch Departments and
Agencies. They realized that worldwide transportation safety,
scientific, and commercial interests could best be served
by discontinuation of SA. Along with our commitment to enhance
GPS for peaceful applications, my administration is committed
to preserving fully the military utility of GPS. The decision
to discontinue SA is coupled with our continuing efforts
to upgrade the military utility of our systems that use
GPS, and is supported by threat assessments which conclude
that setting SA to zero at this time would have minimal
impact on national security. Additionally, we have demonstrated
the capability to selectively deny GPS signals on a regional
basis when our national security is threatened. This regional
approach to denying navigation services is consistent with
the 1996 plan to discontinue the degradation of civil and
commercial GPS service globally through the SA technique.
Originally
developed by the Department of Defense as a military system,
GPS has become a global utility. It benefits users around
the world in many different applications, including air,
road, marine, and rail navigation, telecommunications, emergency
response, oil exploration, mining, and many more. Civilian
users will realize a dramatic improvement in GPS accuracy
with the discontinuation of SA. For example, emergency teams
responding to a cry for help can now determine what side
of the highway they must respond to, thereby saving precious
minutes. This increase in accuracy will allow new GPS applications
to emerge and continue to enhance the lives of people around
the world.
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