Noxious Liquid Substance discharge compliance check per MARPOL Annex II - distance from land, depth, en-route speed, and residue concentration.
Formula
$$ \text{Cat X prohibited; Cat Y/Z} \Rightarrow d \geq 12,nm,\ h \geq 25,m,\ v \geq 7,kn $$
Symbol legend
| Symbol | Meaning | Unit | Source |
|---|---|---|---|
| $Category$ | NLS X/Y/Z/OS | - | IBC Code Ch.17 |
| $d$ | Distance from land | nm | GPS |
Sources
- MARPOL Annex II + IBC Code.