6/13/2018: Updated Notice of Arrival/Departure workbooks released

Notices of Arrival/Departure Workbook Version 7.5.1 and Outer Continental Shelf (OCS) Notice of Arrival Workbook 1.5.1 are now available on NVMC’s. These updated versions provide corrections for the display of ports when the country of Georgia is selected. The official XLS workbooks are provided as a non XML venue for submissions of Notices of Arrival/Departure to the National Vessel Movement Center.


5/31/2018: Navigation Center visits European counterparts to discuss global satellite system information sharing

The EU is building Galileo, a Global Navigation Satellite System similar to the U.S. GPS, and their GSC has looked at NAVCEN as a model service center for civil GNSS. The bilateral talks are allowing and encouraging full cooperation between the two service centers and NAVCEN is sharing its 30 years of experience in representing civil users in the U.S. GPS program. The two service centers discussed their roles and respective responsibilities to support civil users of GPS and Galileo, along with how they can continue to improve the sharing of relevant navigation information.


5/25/2018: IMO approves U.S.-Russian Federation proposal for Bering Strait routing measures

In January, Maritime Commons informed our readers about a proposal by the United States and Russian Federation for a system of two-way routes for vessels to follow in the Bering Strait and Bering Sea. The nations jointly developed and submitted the proposal to the IMO to establish six two-way routes and six precautionary areas. We are pleased to provide an update, as reported to us by Coast Guard members attending the 99th IMO session in London this week.


5/21/2018: U.S. Maritime Advisory 2018-008 – Global Measles Outbreak

As a courtesy to our readers, Maritime Commons is sharing the content of U.S. Maritime Advisory 2018-008 to alert mariners that the Center for Disease Control issued a Travel Health Alert Notice regarding Measles Outbreaks in Africa, Asia, Europe and the Pacific.


5/18/2018: Navigation Safety Advisory Council vacancies

The Navigation Safety Advisory Council provides advice and recommendations to the Secretary of the Department of Homeland Security, through the Commandant of the U.S. Coast Guard, on matters relating to maritime collisions, rammings, and groundings; Inland Rules of the Road; International Rules of the Road; navigation regulations and equipment, routing measures, marine information, diving safety; and aids to navigation systems. Completed applications should be submitted to the Coast Guard on or before July 17, 2018.


5/7/2018: U.S. Maritime Advisory 2018-007 – GPS Interference in Eastern Mediterranean Sea

Maritime Commons is sharing the content of U.S. Maritime Advisory 2018-007 to notify our readers that multiple instances of significant GPS interference have been reported by vessels and aircraft operating in the Eastern Mediterranean Sea since March 18, 2018.


4/12/2018: Upcoming 2019 Global Positioning System week number rollover event

This post provides information on the possible effects of the April 6, 2019 GPS Week Number Rollover on UTC derived from GPS devices.


4/11/2018: GPS directorate proposes change to Navstar GPS control segment

The Navigation Center posted a notice to its website that the Global Positioning Systems Directorate will propose a change to the Navstar GPS Control Segment to User Support Community Interfaces (ICD-GPS-870), Interface Control Documents that will remove Section One from the GPS Operational Advisory.


4/10/2018: Navigation Center 2017 Year in Review

The 2017 Year in Review highlights NAVCEN’s work with maritime stakeholders, interagency partners, and GPS users worldwide to modernize the delivery of Marine Safety Information.


4/9/2018: Inmarsat network migration impact on maritime distress and safety services

Editor’s note: This post was updated April 10, 2018 to reflect that Inmarsat will begin the migration 1400 UTC May 9, 2018 instead of April 16, 2018, as originally announced. For the latest information, visit the Inmarsat website provided in our blog post. Inmarsat announced that it will migrate Inmarsat-C, Mini C, and Fleet77 used for Global Maritime Distress & Safety System, Long Range Identification and Tracking and Ship Security Alerting Systems from their I-3 to their I-4 Network.


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