Class 2 (2nd Engineer) SSEP 📅 Sep 2022

Exam Question

With respect to MARPOL 73/78 Annex - II, Noxious liquid chemicals are divided into catrgories:

(a) State the number of categories, and what does each category signify (6)

(b) Give conditions under which they can be discharged outside social areas (7)

Reference Answer

(a) Discharge of Noxious Liquid Substances under MARPOL Annex II:
The International Convention for the Prevention of Pollution from Ships (MARPOL), particularly Annex II, addresses the discharge of noxious liquid substances (NLS) carried in bulk. This regulation is required for safeguarding the marine environment from the harmful effects of these substances. Annex II establishes a system of categorizing NLS based on their potential hazards and sets forth stringent discharge criteria to minimize pollution.
Categorization of Noxious Liquid Substances:
MARPOL Annex II classifies NLS into four categories based on the severity of the risk they pose to marine resources, human health, amenities, and other legitimate uses of the sea:

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