Modernized GMDSS: What to Expect for Radio Surveys

As the maritime world evolves, the Global Maritime Distress and Safety System (GMDSS) is undergoing major modernization. This transformation impacts how ships handle emergency communication, navigation alerts, and safety protocols. At SEANAV, we help vessel operators prepare for and pass GMDSS radio surveys under the new rules.

New IMO amendments have introduced changes to radio equipment types, service coverage, and operator requirements. While these updates aim to increase safety and flexibility, they also create new compliance challenges. Vessels must upgrade systems, retrain personnel, and schedule regular GMDSS surveys with certified inspectors.

Key changes include the acceptance of new satellite providers beyond Inmarsat, updated performance standards for MF/HF and VHF radios, and removal of mandatory NAVTEX receivers in some regions. Ships must now carry radio equipment suited to their area of operation rather than using a one-size-fits-all rule. This approach allows cost savings but requires correct configuration.

At SEANAV, we offer complete assistance—from inspecting installed GMDSS equipment to certifying your radio room. We ensure your vessel passes flag state and classification society requirements. Our surveyors also provide detailed checklists and assist with digital service logs for smooth audits.

Furthermore, we help operators plan for system updates well before survey dates. This proactive approach reduces delays, avoids fines, and keeps your vessel seaworthy. Whether you’re sailing regionally or globally, we’ll make sure your GMDSS station is compliant, modern, and reliable.

Frequently Asked Questions (FAQ)

• 1. What is the modernized GMDSS?
  The revised GMDSS includes updates to radio requirements, equipment, and digital safety standards.
• 2. When did the changes take effect?
  The IMO adopted the updates in 2022, with enforcement beginning in 2024.
• 3. Does every ship need to upgrade?
  No, only ships operating in certain areas or under new compliance rules must make changes.
• 4. What satellite services are now accepted?
  In addition to Inmarsat, Iridium is now accepted under GMDSS regulations.
• 5. What role does SEANAV play?
  We inspect, advise, and certify your vessel’s GMDSS equipment to ensure compliance.
• 6. Are NAVTEX receivers still mandatory?
  Not in all regions. Some vessels may now use alternative digital services.
• 7. How often are GMDSS radio surveys required?
  Annually, with a full renewal every five years depending on flag and class.
• 8. Do crew members need new training?
  Yes, some roles now require training on updated systems and satellite usage.
• 9. Can older equipment still be used?
  Only if it meets the new performance standards and is still compliant.
• 10. What happens if I fail a survey?
  You must repair or upgrade equipment before certification is issued.
• 11. How can I prepare for my next GMDSS survey?
  Contact SEANAV. We’ll guide you with a checklist and equipment audit.

Don’t wait for last-minute issues. Modernize your GMDSS station with SEANAV’s expert services. We’ll help you stay compliant, safe, and ahead of upcoming inspections.