Australia－Using Exhaust Gas Cleaning Systems (EGCS) We have obtained information on the use of exhaust gas cleaning systems (EGCS) in Australian waters. For full details, please refer to the attached Notice from Australian Government.   EGCS may be used as an alternative method to comply with the sulphur limit of 0.50 mass per cent concentration (m/m) in fuel oil under MARPOL Annex VI and Australia’s domestic law.   Operation requires approval by the vessel’s flag State or a Recognised Organisation, compliance with IMO requirements (MEPC.340(77)), adherence to discharge water standards, proper disposal of sludge and residues, and maintenance of operational records.   In case of EGCS malfunctions, immediate action should be taken, and reports made to the flag State and the Competent Authority of the port State if necessary.