Table 1.4 NOx emission limits (MARPOL Annex VI)
Tier | Year | NOx limit (g/kWh) | ||
|---|---|---|---|---|
Rated engine speed (r/min) | ||||
<130 | 130–2000 | >2000 | ||
I | 2000 | 17 | \( 45 \cdot n^{ - 0.2} \) | 9.8 |
II | 2011 | 14.4 | \( 45 \cdot n^{ - 0.23} \) | 7.7 |
III | 2016 | 3.4 | \( 45 \cdot n^{ - 0.2} \) | 1.96 |