World's Largest Ship Registry Calls for Stricter Seafarer Checks
The Republic of the Marshall Islands, which administers the world's largest ship registry by gross tonnage with over 200 million GT across 5,400 vessels, has issued a formal proposal to the International Maritime Organization calling for enhanced due diligence requirements on seafarer documentation and identity verification. The proposal responds to mounting evidence that sanctions-evading vessels are operating with crew members carrying fraudulent or undisclosed documentation, creating regulatory and safety risks that undermine the integrity of flag state oversight.
Why Is the Marshall Islands Pushing for Stricter Seafarer Checks?
The dark fleet operating outside sanctions compliance frameworks has grown to an estimated 800 to 1,000 vessels globally, many operating with crew whose backgrounds cannot be verified through standard Maritime Labour Convention certification channels. The Marshall Islands registry has identified cases where crew members serving on vessels that transferred to non-compliant flags retained Marshall Islands seafarer documentation while simultaneously serving on sanctioned vessels — creating a paper trail that compromises the registry's compliance standing.
The International Transport Workers' Federation documented 47 cases in 2025 where seafarers were found serving on vessels with certificates of competency issued by authorities that could not confirm the holder's identity or training history. In several instances, crew members were carrying documentation from states with no functioning maritime administration.
What Specific Measures Does the Proposal Include?
The Marshall Islands proposal to IMO's Maritime Safety Committee includes three core requirements. First, mandatory biometric data collection — fingerprints and facial recognition templates — linked to all seafarer certificates of competency issued after 2027. Second, a centralized IMO database cross-referencing seafarer identities against sanctions lists maintained by the UN, EU, US OFAC, and UK OFSI. Third, a requirement for flag states to verify seafarer documentation through the issuing authority before granting or renewing vessel manning approvals.
The proposal also recommends that recognized organizations conducting vessel audits include crew documentation verification as a standard inspection item, rather than relying solely on flag state administrative checks.
How Do Current Seafarer Verification Systems Fall Short?
The existing STCW Convention framework establishes minimum training and certification standards but does not mandate centralized identity verification. Flag states issue certificates based on submitted documentation, and cross-verification between flag states is voluntary. The IMO's Global Integrated Shipping Information System includes seafarer data, but coverage is incomplete and updating is inconsistent.
This creates opportunities for identity fraud, dual employment on compliant and non-compliant vessels simultaneously, and the use of seafarers whose training credentials cannot be independently confirmed. For sanctions enforcement, the gap means that individuals subject to travel bans or asset freezes can continue working at sea without detection.
What Industry Reaction Has the Proposal Generated?
The International Chamber of Shipping has endorsed the biometric verification concept but cautioned that implementation must account for the operational realities of crew changes in ports with limited digital infrastructure. BIMCO has supported the centralized database proposal while noting that data privacy regulations in several jurisdictions may complicate cross-border seafarer data sharing.
Flag states with large registries — Panama, Liberia, and the Bahamas — have expressed preliminary support, recognizing that registry credibility depends on demonstrable compliance enforcement. Resistance is expected from smaller flag states whose business models depend on minimal administrative requirements.
Conclusion
The Marshall Islands proposal addresses a genuine gap in maritime governance. As sanctions enforcement intensifies and the dark fleet expands, the inability to reliably verify who is serving on which vessels creates systemic risk for compliant operators, registries, and the seafarers themselves. Biometric verification and centralized databases are technically feasible and operationally necessary. The question is whether IMO's consensus-based process can deliver these reforms before the integrity gap widens further.