Issuers we track
SuperRonin reads the circular lists of 11 maritime issuers: 3 flag administrations, 1 classification society, 3 P&I clubs, 3 port State control regimes and the IMO. This page shows where each list is, how we read it and when we last did.
Each list is read at least once a day, every 3 hours if one of our users follows the issuer. We copy the number, date and title of each document and link the original on the issuer's site.
The catalogue has 52 more issuers that users can pick on a vessel card. Their lists are closed or not machine-readable, so for now they have no documents here.
Flag administrations
| Issuer | Official list | Read from | Documents | Last read |
|---|---|---|---|---|
| Panama Maritime Authority · AMP · PA | panamashipregistry.com ↗ | web page | 191 · latest 1 Nov 2026 | 10 Nov 2026 |
| Zanzibar Maritime Authority · ZMA · TZ | zma.go.tz ↗ | web page | 71 · latest 26 Oct 2026 | 11 Nov 2026 |
| International Merchant Marine Registry of Belize · IMMARBE · BZ | immarbe.com ↗ | RSS feed | 6 · latest 7 Oct 2026 | 10 Nov 2026 |
In the catalogue, no readable list yet: Tanzania Shipping Agencies Corporation (TASAC), Liberia Maritime Authority (LISCR), Republic of the Marshall Islands Maritime Administrator (IRI), Transport Malta, Merchant Shipping Directorate (TM), Bahamas Maritime Authority (BMA), Shipping Deputy Ministry of Cyprus (SDM), Maritime and Port Authority of Singapore (MPA), Hong Kong Marine Department (MARDEP), Maritime and Coastguard Agency (MCA), Norwegian Maritime Authority (NMA), Danish Maritime Authority (DMA), Maritime Administration of Ukraine (MAU).
Classification societies
| Issuer | Official list | Read from | Documents | Last read |
|---|---|---|---|---|
| Hellenic Classification Society · HCS | hellenicclass.com ↗ | web page | 24 · latest 6 Nov 2026 | 11 Nov 2026 |
In the catalogue, no readable list yet: American Bureau of Shipping (ABS), Bureau Veritas (BV), China Classification Society (CCS), Croatian Register of Shipping (CRS), DNV, Indian Register of Shipping (IRClass), Korean Register (KR), Lloyd's Register (LR), ClassNK (NK), Polish Register of Shipping (PRS), RINA, Türk Loydu (TL), Hellenic Register of Shipping (HRS), Phoenix Register of Shipping (PHRS), International Naval Surveys Bureau (INSB), Russian Maritime Register of Shipping (RS), Dromon Bureau of Shipping (DBS), Maritime Bureau of Shipping (MBS), Cosmos Marine Bureau (CMB), Bulgarian Register of Shipping (BRS), Shipping Register of Ukraine (SRU), Vietnam Register (VR), Biro Klasifikasi Indonesia (BKI), Emirates Classification Society (Tasneef).
P&I clubs
| Issuer | Official list | Read from | Documents | Last read |
|---|---|---|---|---|
| The Swedish Club · Swedish Club | swedishclub.com ↗ | RSS feed | 12 · latest 9 Nov 2026 | 10 Nov 2026 |
| UK P&I Club · UK P&I | ukpandi.com ↗ | RSS feed | 12 · latest 6 Nov 2026 | 10 Nov 2026 |
| Britannia P&I Club · Britannia | britanniapandi.com ↗ | RSS feed | 8 · latest 19 Oct 2026 | 10 Nov 2026 |
In the catalogue, no readable list yet: American Steamship Owners Mutual P&I Association (American Club), Gard, Japan P&I Club (Japan P&I), London P&I Club (London P&I), NorthStandard, Shipowners' Club (Shipowners'), Skuld, Steamship Mutual, West of England P&I Club (West P&I).
Port State control
| Issuer | Official list | Read from | Documents | Last read |
|---|---|---|---|---|
| Tokyo MoU on Port State Control · Tokyo MoU | tokyo-mou.org ↗ | JSON API of the site | 19 · latest 23 Oct 2026 | 9 Nov 2026 · reading fails, we are on it |
| Paris MoU on Port State Control · Paris MoU | parismou.org ↗ | JSON API of the site | 13 · latest 20 Oct 2026 | 11 Nov 2026 |
| Abuja MoU on Port State Control · Abuja MoU | abujamou.org ↗ | RSS feed | 10 · latest 7 Oct 2026 | 11 Nov 2026 |
In the catalogue, no readable list yet: Black Sea MoU on Port State Control (Black Sea MoU), Mediterranean MoU on Port State Control (Med MoU), Indian Ocean MoU on Port State Control (IOMOU), Viña del Mar Agreement (Viña del Mar), Caribbean MoU on Port State Control (CMOU), Riyadh MoU on Port State Control (Riyadh MoU), United States Coast Guard (USCG).
IMO
| Issuer | Official list | Read from | Documents | Last read |
|---|---|---|---|---|
| International Maritime Organization · IMO | imo.org ↗ | web page | 22 · latest 9 Nov 2026 | 10 Nov 2026 |
Missing an issuer, or know where one publishes an open list? Write to [email protected]. Every document we read is also in the circulars index and in the RSS and JSON feeds.
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Questions
How many issuers does SuperRonin track?
We read the lists of 11 issuers: 3 flag administrations, 1 classification society, 3 P&I clubs, 3 port State control regimes and the IMO. Together they hold 388 documents in the index. The catalogue knows 63 issuers in all; the others have no list we can read yet.
How is a list read?
A small reader downloads the page, RSS feed or JSON API where the issuer lists its documents, takes the number, date and title of each one and keeps the link to the original. It introduces itself as SuperRonin, opens only what anyone can open without signing in, and does not copy the documents themselves.
How often are the lists read?
At least once a day. A list one of our users follows, through a vessel's flag, class or P&I club or a follow on the Circulars page, is read every 3 hours. The table shows when each list was last read.
Why are some issuers not read yet?
Their circulars sit in a members' area, on a page that draws the list only in the browser, or on a site that turns automated readers away. We do not get around a login, a captcha or a block. When an issuer opens a list or a feed, we add it.
Which IACS classification societies are covered?
None of the 12 IACS members yet: most of them publish technical circulars to clients only. The classification societies we read today: Hellenic Classification Society.
What happens when a list cannot be read?
The issuer's page keeps its documents and shows when the list was last read. If it fails for more than a day, the page leaves search engines until the list reads again, and we get an alert to fix the reader.
Can I ask you to add an issuer?
Yes. Write to [email protected] with the issuer's name and the address of the page where it lists its circulars. Issuers our users have on their vessels go first.