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CGSIC Messages are no longer provided on this page. For releases from 2017 forward, please navigate to the CGSIC recent updates page (best viewed with Internet Explorer or an RSS Reader). You also may subscribe to receive future messages using our message delivery system.

CGSIC Messages are compiled by year in the PDF file links below:
If you have questions about CGSIC, please use our Contact Us page (select "Civil GPS Civil Interface Committee (CGSIC)") from the pull-down menu.