
Maritime services
Flag registration & seafarer documentation
Registration and documentation delays keep vessels idle and crews off the ship. We coordinate the process with the relevant authorities so the paperwork keeps pace with the operation.
The challenge
Paperwork is on the critical path
A missing endorsement or an incomplete registration file can stop an otherwise ready vessel. We track the requirements, prepare and follow up so you are not chasing it yourself.

What we cover
What's included
- 01
Vessel flag registration
Coordination and facilitation of registration with the relevant flag administration.
- 02
Seafarer certification & endorsements
Support with certificate and endorsement requirements through the relevant authorities.
- 03
Requirement checks
A clear list of what is needed, what is missing and how long each step realistically takes.
- 04
Follow-through
Active follow-up until the documents are issued — with updates you do not have to ask for.
Documents that arrive when the vessel and crew need them.
Questions
Before you ask
J LINE Shipping is a maritime solutions company specialising in ship-to-ship (STS) operations, supported by flag registration and seafarer documentation, vessel inspections, and crew change, husbandry, bunkering and ship management support, for shipowners, charterers and vessel operators.
Do you recruit or deploy seafarers?
No. J LINE coordinates documentation. Seafarer recruitment and deployment are regulated activities carried out by our sister company APOMI under its own DMW licence.
Related services
- LPG STS transfer →VLGC to pressurised carriers, LPG products debunkering and gas vessel port clearance.
- Crude oil STS →High-capacity transfers involving VLCCs and crude tankers, managed with precision.
- STS readiness & risk assessment →Compatibility, personnel, equipment and conditions — verified before you commit.

Start here
Tell us about your operation.
Vessels, cargo, location and timing — whatever you know so far. We will come back with an honest assessment, the options, and a clear scope and cost.
A reply from a specialist · No obligation · Your details stay confidential