Registration is now open for the 52nd meeting of the Civil GPS Service Interface Committee to be held September 17-18, 2012, at the Nashville Convention Center in Nashville, Tennessee in conjunction with the ION GNSS 2012 conference. You may register for the meeting and view the interim agenda on the Navigation Center website. http://www.navcen.uscg.gov/?pageName=cgsicMeetings. The agenda is also published in the Institute Of Navigation (ION) spring brochure announcing the ION GNSS 2012. CGSIC meetings are free and open to the public. You are encouraged to attend to take advantage of this opportunity to personally interact directly with the people that manage the GPS program.