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 All the current GPS Interface Control Documents can be downloaded from <a href="http://www.gps.gov" target="_blank">GPS.gov</a>, the official U.S. Government webpage for GPS.
 
 
-\li GPS L1 and L2C: Global Positioning System Directorate, <a href="http://www.gps.gov/technical/icwg/IS-GPS-200G.pdf" target="_blank"><b>Interface Specification IS-GPS-200 Revision G</b></a>. January, 2013.
-\li GPS L1C (available with first Block III launch, currently scheduled for 2013): Global Positioning System Directorate, <a href="http://www.gps.gov/technical/icwg/IS-GPS-800C.pdf" target="_blank"><b>Interface Specification IS-GPS-800 Revision C</b></a>. January, 2013.
-\li GPS L5 (first Block IIF satellite launched on May, 2010): Global Positioning System Directorate, <a href="http://www.gps.gov/technical/icwg/IS-GPS-705C.pdf" target="_blank"><b>Interface Specification IS-GPS-705 Revision C</b></a>. January, 2013.
+\li GPS L1 and L2C: Global Positioning System Directorate, <a href="http://www.gps.gov/technical/icwg/IS-GPS-200H.pdf" target="_blank"><b>Interface Specification IS-GPS-200 Revision H</b></a>. September, 2013.
+\li GPS L1C (available with first Block III launch): Global Positioning System Directorate, <a href="http://www.gps.gov/technical/icwg/IS-GPS-800D.pdf" target="_blank"><b>Interface Specification IS-GPS-800 Revision D</b></a>. September, 2013.
+\li GPS L5 (first Block IIF satellite launched on May, 2010): Global Positioning System Directorate, <a href="http://www.gps.gov/technical/icwg/IS-GPS-705D.pdf" target="_blank"><b>Interface Specification IS-GPS-705 Revision D</b></a>. September, 2013.