Which category describes a NLS with moderate hazards?

A NLS, or noxious liquid substance, is categorized based on its level of hazard to the marine environment. Category Y specifically refers to those substances that pose a moderate hazard when discharged into the sea. The criteria for this classification involve both the toxic nature of the substance and its potential to cause harm to marine life.

Substances in Category Y can cause adverse effects on marine organisms and the marine environment, but they may not be as toxic or harmful as those in Category X, which are classified as having severe hazards. This distinction is essential for determining appropriate safety measures and pollution prevention strategies during maritime operations. Recognizing the moderate hazard level of Category Y substances helps inform regulations and protocols aimed at protecting marine ecosystems while balancing the needs of shipping and other maritime activities.