In accordance with the international MARPOL Annex VI regulations, in the absence of an exhaust gas cleaning system, what is the maximum allowable Sulphur content for a fuel to be burned while the ship is operating in an emissions control area?
• MARPOL Annex VI limits the sulphur content of fuel, especially inside Emission Control Areas (ECAs) • Think about why sulphur limits are stricter in ECAs than in other sea areas • Consider the trend in international regulations: are sulphur limits getting higher or lower over time?
• Which option best reflects a very low sulphur fuel compared to traditional heavy fuel oil? • If a ship does NOT have an exhaust gas cleaning system, what must be true about the fuel itself to comply in an ECA? • Compare each percentage with what you know about older high‑sulphur fuels versus modern low‑sulphur or ultra‑low‑sulphur fuels.
• Verify the current MARPOL Annex VI sulphur limit specifically for ECAs, not the global limit • Confirm that the value you choose represents a level suitable for SOx Emission Control Areas (SECAs) • Make sure you are not mixing up older historic limits with the stricter present-day ECA limit.
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