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N MI 8900 4B Need help?
Status: CANCELLED
Subject: NAVIGATIONAL SATELLITE TIMING AND RANGING (NAVSTAR) GLOBAL POSITIONING SYSTEM (GPS) PRECISE POSITIONING SERVICE (PPS) ACCESS AND USE POLICY
Responsible Office Code: O
Effective Date: June 14, 1995
Expiration Date: June 14, 1999
Cancellation Date: April 27, 1999 
Document Cancelling this Directive (if Cancelled): N PD 8900 4C
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Documents Cancelled by this Directive:
N MI 8900 4A   -   Show History