An open registry flag state registers ships whose owners are based in other countries. A national registry generally registers only ships owned by its own citizens or companies, and may also restrict who can crew them. According to UNCTAD, nearly 50% of world fleet capacity is registered under just three open registries, Liberia, Panama and the Marshall Islands, even though owners in Greece, China and Japan control over 40% of that capacity (Review of Maritime Transport 2025). For a seafarer, this means the ship’s flag decides which seaman book and endorsements you need. Your nationality does not.
Seaman Books is a documentation consultancy in Business Bay, Dubai, operating since 2011. We prepare, verify and file seafarer documents with seven flag administrations: Panama, Palau, Liberia, the Bahamas, Belize, Honduras and St Kitts & Nevis. All seven are open registries. We do not issue any document, we do not register ships, and no agency can obtain a national CDC on your behalf.
Open registry vs national registry: the decision table
| Open registry (e.g. Panama, Liberia, Bahamas) | National registry (e.g. United States, India) | |
|---|---|---|
| Who can register a ship | Owners of any nationality, subject to the registry’s own conditions | Generally only nationals. US law documents a vessel only if it is “wholly owned” by US citizens or qualifying US entities (46 U.S.C. §12103) |
| Who can crew it | Set by the flag. The ITF notes that some open registers “place no restriction on the nationality of the crew” (ITF) | Often restricted. On a US-documented vessel, the master, chief engineer and officers in charge of a watch must be US citizens or noncitizen nationals (46 U.S.C. §8103) |
| Seaman book you need | The flag’s own book, where the flag requires one, plus a flag endorsement of your CoC if you are an officer | Your national CDC or seaman book, issued by your own country |
| Who can apply for the book | Any nationality that meets the flag’s requirements | Citizens of that country. India’s CDC, for example: “The applicant should be a citizen of India” (Merchant Shipping CDC Rules, 2001) |
| Cost: published administration fee | Bahamas Seafarers’ Record Book USD 60 (AED 220). Panama seaman’s book for non-nationals USD 175 (AED 643) Other flags quote per application | Set by your national authority. India’s 2001 rules prescribe ₹700 |
| Processing time | Panama: Processing Certificate in 3 to 5 business days (valid 90 days), printed 5-year book in up to 25 to 30 days, or within 10 days on urgent processing. Other flags are quoted per application. | Set by your national authority |
| Validity and renewal | Varies by flag. Panama 5 years. Liberia 5 years. The Bahamas publishes no expiry for its record book. | Varies. India: 10 years, renewable on expiry or within 6 months before |
| Acceptance / quality signal | Ranges from the Paris MoU White List to the Black List, depending on the flag (table below) | Also ranges. India is on the Paris MoU Grey List; Norway and the US are on the White List |
| Can Seaman Books arrange it? | Yes. We prepare, verify and file it. The administration issues it. | No. Apply to your own national authority |
AED converted at the UAE fixed peg, AED 3.6725 = USD 1. Our service fee is separate and itemised. See “What it costs” below.
By Dipak Paudel, Seaman Books · Updated 14 October 2026
What is an open registry flag state?
Every ship must be registered with one state, and that state’s flag is the ship’s nationality. The UN Convention on the Law of the Sea leaves the conditions to each state: “Every State shall fix the conditions for the grant of its nationality to ships… There must exist a genuine link between the State and the ship” (UNCLOS, Article 91).
An open registry sets those conditions so that owners from anywhere can register. A Greek-owned bulk carrier can fly the Liberian flag. A Japanese-controlled car carrier can fly the Panamanian flag. That is why the three largest registries by capacity are Liberia, Panama and the Marshall Islands, while the largest owning countries are Greece, China and Japan.
The rules are not lighter. Under UNCLOS Article 94, every flag state “shall effectively exercise its jurisdiction and control in administrative, technical and social matters over ships flying its flag”, including “the manning of ships, labor conditions and the training of crews”. The duties are identical for open and national registries. How well each flag carries them out is measurable (see below).
Is an open registry the same as a “flag of convenience”?
Often the same registries, but the two terms come from different places. “Open registry” describes how a registry works. “Flag of convenience” (FOC) is a campaign designation by the International Transport Workers’ Federation, which defines an FOC vessel as one that “flies the flag of a country other than the country of ownership” (ITF).
The ITF’s Fair Practices Committee currently lists 48 registries as FOCs (ITF list). All seven flags we file with are on it: Bahamas, Belize, Honduras, Liberia, Palau, Panama, and St Kitts and Nevis. So are Malta and the Marshall Islands, and so are two European second registers, the French (FIS) and German (GIS) International Ship Registries.
The FOC list is a union’s position, not a regulatory status. The port state control lists below are the regulators’ own measurement.
What is a national registry?
A national registry (also called a closed or traditional registry) ties the flag to the owner’s nationality, and often to the crew’s. The United States is the clearest published example. A vessel can be documented only if US citizens or qualifying US entities wholly own it, and its senior officers must be US citizens or noncitizen nationals (46 U.S.C. §12103; §8103).
The seafarer document follows the same logic. A national CDC is issued to that country’s citizens. India’s Directorate General of Shipping issues the Indian CDC only to Indian citizens. A Filipino, Nepali or Egyptian seafarer cannot hold one, however experienced they are. See Indian CDC vs foreign seaman book.
Some countries run both. France and Germany, for example, operate an “international” second register alongside the national one, and the ITF lists both among its FOCs. Check which register your ship is on in its certificate of registry.
“Open registry” does not mean “low standard”: what the port state data shows
The regulators’ measure of a flag is port state control: how often its ships are detained when inspected in foreign ports. The Paris MoU (27 European maritime authorities and Canada) publishes White, Grey and Black lists based on three years of inspections. The 2025 report was published on 1 July 2026 and covers 2023–2025 (Paris MoU performance lists):
| Flag | Registry type | Paris MoU list (2025 report) | Rank | Inspections 2023–25 | Detentions | Detentions ÷ inspections* |
|---|---|---|---|---|---|---|
| Norway | National (plus NIS second register) | White | 3 | 1,742 | 23 | 1.3% |
| Bahamas | Open | White | 15 | 1,604 | 40 | 2.5% |
| Malta | Open | White | 16 | 3,637 | 101 | 2.8% |
| United States | National | White | 20 | 139 | 1 | 0.7% |
| Marshall Islands | Open | White | 21 | 5,166 | 167 | 3.2% |
| Liberia | Open | White | 29 | 6,319 | 276 | 4.4% |
| Panama | Open | White | 36 | 5,731 | 338 | 5.9% |
| India | National | Grey | 44 | 45 | 1 | 2.2% |
| St Kitts & Nevis | Open | Black (medium risk) | 60 | 372 | 42 | 11.3% |
| Palau | Open | Black | 61 | 517 | 60 | 11.6% |
| Belize | Open | Black (medium to high risk) | 64 | 259 | 35 | 13.5% |
| Honduras | Open | Not listed in the 2025 report | — | — | — | — |
*Our arithmetic from the published figures. The Paris MoU does not rank flags on this raw rate. It uses a statistical “excess factor” that accounts for sample size, which is why India, with a low raw rate but only 45 inspections, sits on the Grey List.
What this tells you: registry type does not predict the list. Three of the seven flags we file with are White-listed, three are Black-listed and one is unlisted. Before you join, look up the ship’s flag: a Black List flag means more inspections in European ports and a real detention risk to your schedule. The Tokyo MoU publishes its own list for Asia-Pacific ports.
What actually changes for you as a seafarer
1. Your documents follow the ship, not your passport.
Under STCW Regulation I/10, an officer joining a foreign-flag ship needs that flag to recognize their national Certificate of Competency through a flag state endorsement. Some flags also require their own seaman book first. Their published requirements, checked 21 September 2026:
| Flag | Requires its own book before endorsing your certificates? |
|---|---|
| Liberia | Yes. “All seafarers must possess a Liberian seafarer book in order to be eligible to obtain Liberian documentation” (LISCR) |
| St Kitts & Nevis | Yes. Endorsement applicants “must be in possession of, or have applied for, a St. Kitts & Nevis CDC” (SKANReg) |
| Bahamas | No. “A Bahamas SRB is not mandatory to serve on board a Bahamian ship” (BMA Bulletin 107) |
| Belize, Panama | Not listed among their published endorsement requirements. Your employer may still ask for the book. |
| Palau, Honduras | Not confirmed. We do not publish a guess. |
2. Your rights come from the flag.
The flag state is responsible for enforcing the Maritime Labour Convention on its ships: wages, hours of rest, repatriation and complaints. On an open-registry ship, that means the Panamanian, Liberian or Bahamian administration, not your home country. See your rights under MLC 2006.
3. Your pay may be covered by a union agreement even on an FOC ship. In 2025, 14,407 of the 15,663 live ITF agreements covered FOC-flagged vessels. The five flags with the most vessels covered were Panama, the Marshall Islands, Liberia, Malta, and Antigua and Barbuda (ITF). Ask whether your vessel has an ITF or IBF agreement before you sign. See seafarer salary by rank.
What it costs, and how long it takes
The total for an open-registry seaman book has two parts. The first is the administration’s charge, which belongs to the flag and which you should be able to check. The second is our service fee, which is ours.
- Administration charges that are published: the Bahamas Seafarers’ Record Book is USD 60 (AED 220), and USD 50 for the digital version, effective 1 April 2026. The Panama seaman’s book for non-nationals is USD 175 (AED 643). Liberia, Belize, Palau, Honduras and St Kitts & Nevis do not publish a schedule we can cite, so we confirm their charges in writing at quote stage.
- Our service fee: quoted per application, because it depends on the flag, the document, your rank and whether you need urgent processing.
- Time, Panama: Processing Certificate in 3 to 5 business days, valid for 90 days. Printed book in up to 25 to 30 days, or within 10 days on urgent processing. Timing runs from the point a complete, verified file is submitted. Other flags: quoted per application.
A printed book “in 24 hours” is usually a provisional certificate. Ask which document you are being quoted for.
Which should you choose?
If you already have a contract: you do not choose. The ship’s flag decides. Your only question is whether your file meets that administration’s requirements. Send us the vessel name or flag and we will tell you.
If you sail on your own country’s national-flag ships: your national CDC and CoC are the documents that matter. You do not need an open-registry book for that work, and we will tell you so.
If you are not yet contracted and want to be hireable internationally: choose on the ship types and employers you are targeting. Check the flag’s place on the current Paris MoU list. The administration fees across these flags differ by tens of dollars, not hundreds.
If someone is selling one flag as “the best open registry”: ask for the flag’s Paris MoU listing and its own published fee page. Of the seven flags we file with, three are White-listed, three are Black-listed and one is unlisted. None of them is best for everyone.
Shipowners comparing registries for ship registration should talk to the registry or a ship-registration agent. Seaman Books handles seafarer documents only.
Get the right flag document, first time
Send us four things: the flag or vessel name, your rank, your CoC issuing country and expiry date, and the date of your last medical. We will tell you which documents that flag requires, what the administration charges, what we charge, and which document lets you join before the printed book arrives. The eligibility check is free. If you need nothing from us, we will say so.
- Free eligibility check
- WhatsApp a compliance officer: +971 55 458 3416
- Office: #903 Regal Tower, Business Bay, Dubai · 09:30–18:00
Frequently asked questions
What is an open registry flag state?
An open registry flag state is a country that registers ships owned by individuals or companies based in other countries. Liberia, Panama and the Marshall Islands are the largest, and together they hold nearly 50% of world fleet capacity (UNCTAD, 2025). Every flag, open or national, carries the same flag-state duties under UNCLOS Article 94.
What is the difference between an open registry and a national registry?
A national registry generally registers only ships owned by its own nationals and may require its own citizens as officers. US law, for example, requires US ownership and US-citizen senior officers. An open registry accepts foreign owners. For seafarers, an open-registry ship needs that flag’s documents, and a national-flag ship usually needs national ones.
Is an open registry the same as a flag of convenience?
Usually it is the same registries described from two angles. “Open registry” describes how the registry works. “Flag of convenience” is the ITF union’s term for a ship flagged outside its owner’s country. The ITF lists 48 registries as FOCs, including Panama, Liberia and the Bahamas. Port state control lists measure actual safety performance.
Do I need an open-registry seaman book if I already have my national CDC?
Yes, if you are joining a foreign-flag ship, plan for one. Your national CDC stays valid as your home-country record, but the ship’s flag sets its own rules. Liberia and St Kitts & Nevis require their own book before endorsing your certificates. The Bahamas, Belize and Panama do not list one for endorsement, but your employer may still ask for it.
Sources: UNCTAD, Review of Maritime Transport 2025 · UNCLOS Part VII, Articles 91 and 94 · ITF, Flags of Convenience and the list of current FOC registries · Paris MoU 2025 Annual Report, performance lists · 46 U.S.C. §§12103 and 8103 · LISCR, SKANReg, BMA Bulletin 107 · Merchant Shipping (CDC-cum-SID) Rules 2001 (India). All read between 21 September and 14 October 2026. Seaman Books is a documentation consultancy. It is not a flag-state authority, a ship registry or a government body.
