General Cargo Ship CII
CII for multi-purpose / general-cargo ships. MEPC.337 reference (a=31948, c=0.793) - by far the steepest c exponent, meaning required CII drops fastest with capacity. Small general-cargo ships face strict per-tonne-mile targets.
Ship & voyage
Fuel
Attained CII
7.077g CO₂ / (dwt·nm)
Required CII
11.292g CO₂ / (dwt·nm)
Rating
A
Major superior performance. No corrective action required.
Formula, assumptions, and limits
General cargo d-boundaries: d1=0.83, d2=0.94, d3=1.06, d4=1.19. The fleet is highly heterogeneous - multipurpose cranes, container slots, project cargo handling - so both Attained and Required CII swing widely across operators.