EU MRV for General Cargo Ships 400–4,999 GT
Since 1 January 2025, smaller general cargo and offshore ships calling EU ports are inside EU MRV. Here is what that actually means for an owner — in plain language, with the deadlines that matter.
Is my ship in scope? (30-second check)
In scope — via the 2025 extension.
General cargo and offshore ships of 400–4,999 GT calling EU/EEA ports are covered by EU MRV since 1 January 2025. You need a monitoring plan, per-voyage monitoring and a verified annual emissions report. CII, IMO DCS and EU ETS do not (yet) apply at this size.
The deadlines that matter
Monitoring started
Per-voyage monitoring became mandatory: fuel consumed, distance sailed, time at sea and cargo carried, for every voyage touching an EU/EEA port. A monitoring plan had to be submitted to an accredited verifier.
First verified emissions report
Your 2025 emissions report — checked by an accredited verifier — must be submitted via THETIS-MRV. This is the first hard filing for the 400–4,999 GT cohort.
Document of Compliance on board
After a satisfactory report, a Document of Compliance is issued and must be carried on board — port state control can ask for it.
What you must do
- 1.Appoint an accredited MRV verifier and get your monitoring plan assessed.
- 2.Record, for every EU-touching voyage: fuel consumption by fuel type, distance, time at sea and cargo carried.
- 3.Aggregate the year into an annual emissions report.
- 4.Have the report verified and submit it via THETIS-MRV by 31 March each year.
- 5.Carry the Document of Compliance on board by 30 June.
What you do NOT need at this size
- ✓No CII rating — IMO CII applies from 5,000 GT.
- ✓No IMO DCS annual fuel report — also a 5,000 GT threshold.
- ✓No EU ETS allowances — the ETS currently starts at 5,000 GT.
- ✓No FuelEU Maritime balance — applies above 5,000 GT.
One caveat: the European Commission is required to review extending EU ETS to ships of 400–5,000 GT (review due end-2026). Nothing is decided — but it is exactly why building clean MRV data now is a cheap insurance policy.
Your crew already writes down everything MRV needs.
BunkerIstanbul turns the operational data your crew already logs — noon reports, bunkers, port calls — into per-voyage MRV monitoring and an annual report prepared for your verifier. Free for shipowners, any fleet size.
Frequently asked questions
My ship is 2,500 GT and trades Turkey–Greece. Am I covered?
If it is a general cargo ship and it calls Greek (EU) ports — yes, since 1 January 2025. All emissions on voyages into, out of and between EU/EEA ports, and at berth, are monitored and reported under MRV. The 50% share applies only to EU ETS allowances, which do not yet apply below 5,000 GT.
What happens if I simply don’t report?
Penalties are set by member states and escalate: fines per non-compliant period, flag-state notification, and after two consecutive reporting periods without a valid DoC, ships can face expulsion orders / entry refusals in EU ports. Port state control checks the DoC.
Do I need special sensors or equipment?
No. The EU MRV monitoring methods work from data your crew already keeps: BDNs with periodic tank readings (method A), tank monitoring on board (B), flow meters (C) or direct emission measurement (D); your monitoring plan declares which one the ship uses. BunkerIstanbul totals the daily noon reports per voyage and checks the BDNs against the bunkering they record, so the figures your verifier compares with the plan are ready. It does not change the method your plan declares.
Can BunkerIstanbul submit to THETIS-MRV for me?
You (or your verifier) submit in THETIS-MRV; we prepare everything underneath it: per-voyage monitoring, the annual aggregation, Excel exports your verifier can audit, and the evidence chain (logbooks, BDN reconciliation, data-gap alerts). Verification itself must legally be done by an accredited verifier — anyone claiming to replace them is misleading you.
Over 5,000 GT, CII applies too — estimate a ship’s A–E band from a year’s fuel and distance in seconds, no sign-up.
This guide summarises Regulation (EU) 2015/757 as amended by Regulation (EU) 2023/957 for information purposes. It is not legal advice; consult your verifier or flag administration for binding interpretations.