Engineering · Pollution — Sulfur ECA
Within a designated Emission Control Area (ECA), the maximum sulfur content of marine fuel oil is:
- A3.50%
- B0.50%
- C0.10%✓ Correct
- D1.50%
Explanation
Inside ECAs the fuel sulfur limit is 0.10% m/m. Outside ECAs the global cap is 0.50% (since 2020). Ships may alternatively use an approved exhaust gas cleaning system (scrubber) to achieve equivalent SOx reduction.
Authority: MARPOL Annex VI, Regulation 14 (ECA sulfur limit)
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