Only visible to XING members.

Revised MARPOL Annex II (noxious liquid substance carried in bulk)

The revised Annex II, includes a new four-category categorization system for noxious and liquid substances.

The new categories are:

CATEGORY X: Noxious Liquid Substances which, if discharged into the sea from tank cleaning or deballasting operations, are deemed to present a major hazard to either marine resources or human health and, therefore, justify the prohibition of the discharge into the maine environment.

CATEGORY Y: Noxious Liquid Substances which, if discharged into the sea from tank cleaning or deballasting operations, are deemed to present a hazard to either marine resources or human health or cause harm to amenities or other legitimate uses of the sea and therefore justify a limitation on the quality and quantity of the discharge into the marine environment.

CATEGORY Z: Noxious Liquid Substances which, if discharged into the sea from tank cleaning or deballasting operations, are deemed to present a minor hazard to either marine resources or human health and therefore justify less stringent restrictions on the quality and quantity of the discharge into the marine environment, and

OTHER SUBSTANCES: substances which have been evaluated and found to fall outside Categories X, Y, or Z becuase they are considered to present no harm to marine resources,
human health, amenities or other legitimate uses of the sea when discharged into the sea from tank cleaning or deballasting operations. The discharge of bilge or ballast water or other residue or mixtures containing these substances are not subject to any discharge requirements of MARPOL Annex II

For further information, go to http://www.imo.org