Navigation Center Website Top Header Banner
Home | DGPS Advisories | GPS Constellation Status | MSI Data Downloads | GPS Testing Notices | LNMs | Almanacs | Nav Rules | AIS | USCG IIP | Contact Us | Search
Mission Areas
Subscribe / Report (free)
Maritime Information

Print friendly version  

The Navigation Center appreciates your reports regarding service degradations, disruptions, or other incidents or anomalies. Please answer the questions below. Some fields are required for submission, but all personal data will be kept private and will only be used to contact you in the event that we need more information or if clarification is required. Please be as complete as possible when reporting an incident. Thank you!

Please read before submitting a report:

If your GPS unit or others' GPS units are leading people to an incorrect address OR are otherwise leading people to an incorrect location, the problem is not likely a "GPS" problem, but rather, it is very likely a MAPPING problem.

Unfortunately, the Navigation Center cannot assist you with GPS unit mapping problems, as we do not develop, control, nor repair the mapping software contained in GPS units, including vehicle navigation systems. Please see our GPS mapping problems page for additional information.

To correct mapping problems such as an incorrect address, or to request a change to the address for a business or home, or to add an address, please submit your corrections to these websites: Map Share Reporter and NAVTEQ .

Please understand that until mapping software is updated in GPS units (owners must usually purchase and install update mapping data), GPS units will continue to show previously incorrect addresses or locations. Again, this is not a GPS problem.

If you are reporting a GPS issue dealing with aviation (domestic or international) usage, please use the following link to report directly to the FAA (

If you are experiencing GPS issues relating to land-based or maritime positioning, navigation, or timing signals, please proceed to fill out a GPS disruption report using the form below. The Navigation Center thanks you for your patience regarding this matter. Please report all other GPS problems using the form below.

Navigation Center Website Privacy Act Statement

:  5 U.S.C 301; 14 U.S.C. 93(a) and (c); 14 U.S.C 632; 33 U.S.C 1223

Purpose:  The Coast Guard Navigation Center will use this information to disseminate navigation safety notices and updates to individuals upon request and to receive reports of aid to navigation outages, issues or discrepancies.

Routine Uses:  Coast Guard personnel will use this information to disseminate safety notices and updates and to aid in the repair or investigate reports of navigation outages, issues or discrepancies.  Any external disclosures of data within this record will be made in accordance with DHS/ALL-002, Department of Homeland Security General Contact Lists, 73 Federal Register 71659, November 25, 2008, and DHS/USCG-013, Marine Information for Safety and Law Enforcement System of Records, 74 Federal Register 30305, June 25, 2009.

Disclosure: Furnishing this information is voluntary; however, failure to furnish the requested information may hinder your request for navigation safety related information.

* Denotes a required field

1) *      (Our Privacy Policy)
2) *
3) *
4) and if additional information is necessary:
5) *What was the start time and date of the GPS disruption? calendar icon
6) *

(press Ctrl while selecting to select multiple satellites)
(press Ctrl while selecting to select multiple satellites)
CAPTCHA listen to audio (Audio)

Reload Image