The shadow fleet consists of ships that are sanctioned by governments, or who are associated with sanctioned entities, such as shippers or brokers or owners. They’ve needed to be able to show a registration to get insurance or to enter ports.
But they need a flag state that isn’t going to ask very many questions. And that is not going to enforce the nation’s rules on your ship. And that isn’t going to care about how you maintain the ship or take care of the crew, or handle potential pollution problems. Most of the shadow fleet consists of older ships that can be expected to need more frequent maintenance.
Recently some flag states, such as Panama, have tightened their regulations substantially, and are committed to greater oversight. However, others still operate simply as rubber stamps for a fee.
The maritime intelligence firm Windward has reported that Nicaragua and Equatorial Guinea have started taking on shadow vessels in their flag registries.
There are also many cases of false-flag registries, which purport to be associated with a nation, but in fact are simply paper-shuffling offices set up to mislead those who rely on flag identification for activities such as port entry.
Some registries are often seen as “rubber stamps.” While they technically require “proof of insurance” and “non-sanctioned port” letters, the recent case of the tanker Apple (flying the Equatorial Guinea flag) shows that these vessels often ignore reporting requirements and operate under opaque ownership despite these formal rules.
The International Maritime Organization (IMO) recently approved new guidelines aimed at improving transparency in ship registration and cracking down on the growing misuse of flags.
We need to see how much the IMO actions actually affect the picture. But past history is not promising. The effect the IMO can bring to bear is at the nation level.
It’s unrealistic to expect nations to police external private firms that produce false-flagging documents. However, nations can have an effect by announcing their rejection of false-flag firms, by name and location.
Nations can have a substantial effect if they choose, like Panama, to announce and follow up on their enforcement of the rules. That would mean tracking possible use of their flag papers and striking off ships that are not using them legally, or are violating national and IMO rules, such as insurance and crew treatment.
I’m a skeptic that nations will stand up and do this. But recent actions by some flag states are good signs, and some stiffness on the part of the IMO may be rewarded.
Sam Chambers April 22, 2026
Atle Staalesen
https://www.arctictoday.com/shadow-tanker-sailed-outside-200-mile-zone-to-avoid-norwegian-scrutiny/
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