Performance Standards & Specifications

GPS Standard Positioning Service (SPS) Performance Standard

Diagram of GPS signal in space interface with user segment This document defines the levels of performance the U.S. government makes available to users of the GPS Standard Positioning Service, also known as the civilian GPS service. The Assistant Secretary of Defense for Networks and Information Integration issues the document on behalf of the Department of Defense and the U.S. government. Earlier versions were referred to as "signal specifications" instead of performance standards.

DOWNLOAD 1.6 MB	4th Edition (now in effect) This revision of the document, dated September 2008, supersedes all prior versions.
DOWNLOAD 2.1 MB	3rd Edition This revision, dated October 4, 2001, is no longer in effect. It is provided here for historical reference purposes. This was the first update following the deactivation of GPS Selective Availability in 2000.
DOWNLOAD 1 MB	2nd Edition This revision, dated June 2, 1995, is no longer in effect. It is provided here for historical reference purposes.
DOWNLOAD 5.4 MB	1st Edition The initial release, dated November 5, 1993, is no longer in effect. It is provided here for historical reference purposes.

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GPS Precision Positioning Service (PPS) Performance Standard

Diagram of GPS signal in space interface with user segment This document defines the levels of performance the U.S. government makes available to authorized users of the GPS Precise Positioning Service, also known as the military GPS service. The Assistant Secretary of Defense for Networks and Information Integration issues the document on behalf of the Department of Defense and the U.S. government.

1st Edition

The initial release of the document, dated February 23, 2007, is currently in effect.

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GPS Wide Area Augmentation System (WAAS) Performance Standard

This document defines the levels of performance the U.S. government makes available to users of the GPS SPS augmented by the Wide Area Augmentation System. The Vice President for Technical Operations, Federal Aviation Administration, issues the document on behalf of the Department of Transportation and the U.S. government.

1st Edition

The initial release of the document, dated October 31, 2008, is currently in effect.

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GPS Civil Monitoring Performance Specification

The purpose of this document is to provide a comprehensive compilation of requirements for monitoring the GPS civil service and signals based on top level requirements to monitor all signals all the time. It is published and maintained at the direction of the Program Manager for Civil Applications, GPS Wing, on behalf of the Department of Transportation and the U.S. government.

DOWNLOAD 444.2 KB	2nd Edition (now in effect) This revision of the document, dated April 30, 2009, supersedes all prior versions.
DOWNLOAD 626 KB	1st Edition The initial release, dated December 1, 2005, is no longer in effect. It is provided here for historical reference purposes.