This advisory supersedes and cancels U.S. Maritime Advisory 2025-014

1. References: None.

2. Issue: This Advisory provides updates to maritime security resources, websites, and
information.

3. Guidance: The U.S. Maritime Advisory System website, which contains all current and expired U.S. Maritime Alerts and Advisories, is maintained by the Maritime Administration (MARAD). Upon U.S. Government (USG) clearance of Alerts and Advisories, they are broadcast by the National Geospatial-Intelligence Agency (NGA) and distributed via email. It is important to note these are USG products and are not solely MARAD or NGA authored products. Additional information on this system, including information on participating USG agencies and subscribing, is available at https://www.maritime.dot.gov/msci.

GPS disruption affects maritime navigation in various parts of the world. Mariners are
encouraged to take the following precautions:

• Develop plans for responding to GPS disruptions that affect safe navigation of vessels prior to getting underway.

• When a GPS outage occurs, report incidents as soon as safely possible to the U.S. Coast Guard Navigation Center (NAVCEN) through its online reporting form at https://www.navcen.uscg.gov/report-a-problem or via phone at 703-313-5900, 24-hours a day. NATO Shipping Centre reporting information is available at https://shipping.nato.int/nsc/cyber-interference-reporting.

AIS are open, unencrypted, and unprotected radio systems intended to operate on non-secure VHF-FM channels. As such, AIS signals can be spoofed, resulting in incorrect or missing AIS data. Also, AIS devices do not always have virus or malware protection installed, so cyber security best practices against hacking should be adhered to if you connect your AIS to a network or update it using removable electronic devices (e.g. USB drives). AIS, while an invaluable situational tool, should never be solely relied upon for collision avoidance or navigational decision-making.

The Maritime Industry Cybersecurity Resource Center website at https://www.uscg.mil/MaritimeCyber/ serves as a one-stop-shop for maritime industry
stakeholders to find trusted maritime cybersecurity tools and resources, including government points of contact and current industry-focused cybersecurity resources critical to protecting the Marine Transportation System (MTS) from cyber threats. Additionally, information on the importance of multi-factor authentication is available at https://www.cisa.gov/mfa.

The Office of Naval Intelligence (ONI) publishes monthly Worldwide Threat to Shipping (WTS) reports, which provide information on piracy and armed robbery at sea activity, trends, and details of recent incidents. The reports can be found on ONI's "Shipping Threat Reports" website at https://www.oni.navy.mil/ONI-Reports/Shipping-Threat-Reports/Worldwide-Threat-to-Shipping/.

NGA’s Publication No. 117 (Radio Navigational Aids) provides communication and other
important information for mariners. This resource is available at https://msi.nga.mil/Publications/RNA and has been corrected to September 2021 as noted in the preface of the publication.

The Office of Foreign Assets Control (OFAC) of the Department of the Treasury administers and enforces economic sanctions based on U.S. foreign policy and national security goals, including those related to specific countries and governments, terrorists, international narcotics traffickers, those engaged in activities related to the proliferation of weapons of mass destruction, and other threats to the national security, foreign policy or economy of the United States. In some cases, these sanctions may affect maritime trade. Maritime industry information on tools to counter current and emerging trends in sanctions evasion related to shipping and associated services can be found at: https://home.treasury.gov/policy-issues/financial-sanctions/recent-actions/20200514.
Additional OFAC sanctions information and notices can be found at: https://home.treasury.gov/policy-issues/financial-sanctions/sanctions-programs-and-country-information. OFAC’s sanctions list search can be found at https://sanctionssearch.ofac.treas.gov. Questions relating to OFAC sanctions may be emailed to: ofac_feedback@treasury.gov. The most recent Price Cap Coalition Advisory for the Maritime Oil Industry and Related Sectors can be found at: https://ofac.treasury.gov/recent-actions/20241021. The Department of State has
certain authorities to implement a range of nonproliferation, counterterrorism, and country specific sanctions, among others, which may affect maritime trade. Information about Department of State sanctions implemented by OFAC can be found at: https://www.state.gov/bureaus-offices/under-secretary-for-economic-growth-energy-and-
environment/bureau-of-economic-energy-and-business-affairs/division-for-counter-threat-finance-and-sanctions/, https://www.state.gov/bureau-of-arms-control-and-
nonproliferation/nonproliferation-sanctions, and/or https://www.state.gov/terrorist-designations-and-state-sponsors-of-terrorism/.

The U.S. Department of State maintains a list of countries determined by the Secretary of State to have repeatedly provided support for acts of international terrorism. The four main categories of sanctions resulting from designation as a State Sponsor of Terrorism are: restrictions on U.S. foreign assistance; a ban on defense exports and sales; certain controls over exports of dual use items; and miscellaneous financial and other restrictions. The list of countries designated as State Sponsors of Terrorism is available at: https://www.state.gov/state-sponsors-of-terrorism/.

U.S. Department of State Travel Advisories discuss safety and security information that should be reviewed by U.S. mariners prior to disembarkation in foreign ports. These travel advisories are available at: https://travel.state.gov/content/travel/en/traveladvisories/traveladvisories.html/. U.S. citizens abroad should enroll or update their information via the Smart Traveler Enrollment Program (STEP) to get important updates and alerts from the U.S. embassy or consulate. Enrolling helps the U.S. embassy or consulate contact you or your emergency contact in an emergency. Sign up at: https://step.state.gov.

U.S. Centers for Disease Control (CDC) Travel Notices may affect maritime interests, especially during overseas crew changes or passenger embarkation/disembarkation and can be found at: https://wwwnc.cdc.gov/travel/notices. U.S. Maritime Alerts and/or Advisories may occasionally be published to highlight health threats depending on their scope, urgency, and impact, but mariners are advised to become familiar with this web resource and refer to it prior to and while traveling.

The Maritime Global Security website at https://www.maritimeglobalsecurity.org/ offers industry-issued best practices and guidance to mariners by geographic region and provides contact and subscription information for regional maritime security reporting centers, particularly in high risk-areas. The Best Management Practices (BMP) Maritime Security, which has replaced BMP5 and other regional BMP documents, is available at this website.

Maritime industry stakeholders who wish to receive U.S. Maritime Alerts and Advisories must self-register by following the subscription instructions at https://www.maritime.dot.gov/msci/us-maritime-alerts-and-advisories-subscriptions. Please note that this self-registration system utilizes a govdelivery.com URL, but U.S. Maritime Alerts and Advisories sent via this system will arrive from the marad@info.dot.gov email address, which should be added to the approved senders list within your email account to ensure that future U.S. Maritime Alerts and Advisories sent to you are not blocked.

4. Contact Information: Questions regarding the U.S. Maritime Advisory System may be emailed to the Global Maritime Operational Threat Response Coordination Center at
GMCC@uscg.mil.

5. Cancellation of Prior Advisories:

This message cancels and supersedes U.S. Maritime Advisory 2025-014 and will automatically expire on October 21, 2026.

Maritime industry questions about this Advisory should be directed to the Global Maritime Operational Threat Response Coordination Center at GMCC@uscg.mil. Supplemental information about U.S. Maritime Alerts and Advisories, including subscription details, may be found at: https://www.maritime.dot.gov/msci. Feedback provided by U.S. maritime industry stakeholders regarding the U.S. Maritime Advisory System has greatly supported the USG in pursuing continued enhancements to this system. Feedback to MARADSecurity@dot.gov is always welcome.