Vehicle carrier · United States flag · built 2008
ARC DEFENDER: CO₂ emissions 2018–2025
IMO 9375264 MMSI 338145000EU ETS8 reporting years
- CO₂ reported 2025
- 8,712 t
- Fuel burned
- 2,786 t
- Distance
- 33,090 nm
- Time at sea
- 2,474 h
- Emitted at berth
- 9% of total
- Share of year under way
- 28%
- Gross tonnage
- 61,328
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ARC DEFENDER against its type
Built in 2008, it is the same age as the median vehicle carrier on this register (build year 2008, 595 vessels with a known build year). At 61,328 gross tonnage it is larger than 71% of the other 571 vehicle carriers with a recorded tonnage. It is one of 23 vehicle carriers here under the United States flag, 3.2% of the 713 on the register. The same builder is recorded for 38 other vessels here, 17 of them vehicle carriers. Its MRV returns name it TOMAR for 2018–2021 and ARC DEFENDER for 2022–2025. The reported port of registry changed: Valletta (2018–2021), then Wilmington, DE (2022–2025).
Its 8,712 t of CO₂ for 2025 is 23% above the median of 7,074 t among the 514 vehicle carriers on this register that reported for 2025. Per nautical mile it emitted 263.3 kg CO₂, 15% below the type median of 309.1 kg. It logged 2,474 hours at sea against a median of 1,639 hours for its type that year. 9.0% of its 2025 emissions were at berth; the median for vehicle carriers was 3.1%. Across 8 years with reported emissions, the highest was 2018 (19,297 t) and the lowest 2020 (4,074 t). Its efficiency percentile within the type went from 13 in 2018 to 52 in 2025 (lower is more efficient). Of the 7 sister ships listed below with a 2025 return, 0 reported a lower CO₂ per nautical mile than this vessel.
Emissions by year2018–2025
| Year | CO₂ (t) | Fuel (t) | Distance (nm) | At sea (h) | At berth (t) | kg CO₂/nm | EEOI | Percentile |
|---|---|---|---|---|---|---|---|---|
| 2025 | 8,712 | 2,786 | 33,090 | 2,474 | 780 | 263.3 | 52.6 | 52 |
| 2024 | 7,103 | 2,253 | 24,380 | 1,804 | 771 | 291.4 | 37.1 | 10 |
| 2023 | 11,865 | 3,731 | 38,475 | 2,872 | 1,086 | 308.4 | 73.8 | 82 |
| 2022 | 9,287 | 2,932 | 30,703 | 2,596 | 812 | 302.5 | 63.4 | 63 |
| 2021 | 6,901 | 2,180 | 23,077 | 1,709 | 306 | 299.1 | 59.0 | 51 |
| 2020 | 4,074 | 1,298 | 13,640 | 913 | 155 | 298.7 | 46.8 | 26 |
| 2019 | 5,912 | 1,883 | 17,680 | 1,285 | 191 | 334.4 | 52.4 | 34 |
| 2018 | 19,297 | 6,161 | 54,478 | 3,810 | 440 | 354.2 | 47.8 | 13 |
Vessel particulars
- IMO number
- 9375264
- Previously reported as
- TOMAR
- MMSI
- 338145000
- Call sign
- WDM6793
- Ship type
- Vehicle carrier
- Gross tonnage
- 61,328
- Length overall
- 200.0 m
- Beam
- 32.0 m
- Year built
- 2008
- Flag state
- United States per EU MRV 2025
- Port of registry
- WILMINGTON, DE MRV 2025
- Technical efficiency (design)
- EEXI (13.79 gCO₂/t·nm)
- Verifier
- DNV, Germany
- Accreditation
- VS-16026-01
- Compliance document issued
- 2026-02-24
- Compliance document expires
- 2027-06-30
Efficiency against its own type2025
Position 220 of 423 qualifying vehicle carriers by EEOI, at the 52nd percentile. The dashed line is the type median, 51.7; this vessel reported 52.6.
EEOI divides emissions by transport work, which for this vessel and year was 165,542,086 tonne-miles over 33,090 nautical miles.
Reported CO₂ by year
Reported CO₂ in 2025 was 54.9% lower than in 2018, for EU/EEA voyages only.
From 2024 to 2025, emissions rose 22.7% while distance sailed rose 35.7%and CO₂ per nautical mile fell 9.6%.That points mainly to how much the vessel sailed, rather than the other.
Where the 2025 emissions occurred
Methane, nitrous oxide and EU ETS2025
- Total CO₂ equivalent
- 8,849 t
- Methane (CH₄)
- 0.14 t
- Nitrous oxide (N₂O)
- 0.50 t
- Under EU ETS
- 4,744 t, 54% of total
Observed movementsAIS · Norwegian waters
- First seen
- 29 Jan 2026
- Last seen
- 21 Apr 2026
- Days observed
- 13
- Positions
- 1,097
- Median speed
- 14.3 kn
Its recorded positions span 58.0°N to 64.0°N and 4.5°E to 11.3°E.
120 hourly points from 1,097 positions. Filled circle first, open circle last; squares are ports for orientation, not calls.
Positions recorded per month
Norwegian Coastal Administration open AIS, Norwegian waters only, 01 Jul 2025 to 27 Jul 2026. A gap means the vessel was not recorded here, not that it was idle or that a transponder was off.
Sources and how to read this
- Emissions: EU MRV publication (THETIS-MRV), reporting years 2018–2025, published by the European Commission.
- Vessel particulars: Wikidata (CC0) and Wikimedia Commons.
- Movements: Norwegian Coastal Administration open AIS extract.
This page draws on 8 MRV reporting years, an efficiency ranking, 5 of 5 vessel particulars, AIS movements in Norwegian waters, a name history and a licensed photograph. Not found in the sources for this vessel: a sanctions listing and US port state inspections.
Empty means unreported, never zero. How EEOI, distance, percentiles and sister ships are handled is explained under reading a vessel page. Something wrong? See corrections.