ODME stands for Oil Discharge Monitoring Equipment. It is a system used on ships to monitor, record, and control the discharge of oily water to ensure compliance with environmental regulations. This equipment measures the oil content in the discharge and is mandatory for certain types of vessels to prevent marine pollution. Function: An ODME system continuously monitors the oil content in ballast and slop water being discharged overboard. Components: It typically includes an oil content meter, a flow meter, a GPS, and a data recording device to log information like oil content, rate of discharge, and total quantity discharged. Purpose: The system's primary purpose is to protect the marine environment by ensuring that oil discharge adheres to regulations, such as those in MARPOL Annex I. Mandate: Large oil tankers and other oil-carrying vessels are required by international law to be equipped with an approved ODME system.