Marine Order 96 (Marine Pollution Prevention - Sewage) - Australian Government


You are required to comply with this Marine Order if you intend to operate a regulated Australian vessel for commercial or recreational use, or a foreign vessel within Australian waters.

This Order gives effect the International Marine Pollution (MARPOL) Annex IV, which outlines the requirements for ships regarding the prevention of marine pollution by sewage, including the standards for the installation and maintenance of sewage treatment and discharge systems and equipment. Under the Order sewage means:

  • drainage and other wastes from any form of toilets and urinals
  • drainage from medical premises (dispensary, sick bay, etc.) via wash basins, wash tubs and scuppers located in such premises
  • drainage from spaces containing living animals
  • other waste waters when mixed with the drainages defined above.

Specified vessels are required to have an International Sewage Prevention Certificate (ISPP) issued by the agency or another relevant organisation. The conditions for the issue of an ISPP certificate are outlined in the Order.

If you are carrying solid bulk cargoes which are harmful to the marine environment, you will have to classify and declare. The criteria for determining the classification of the cargoes has been inserted into Appendix I to Annex V of MARPOL

Please consult the Contact Officer for more information.

Service type

Code of Practice

A code of practice is a set of rules which details how people in a certain industry should behave. A code of practice can be defined as a result of legislation or by industry regulators and bodies.

Act(s) name

Navigation Act 2012 Australian Government

Protection of the Sea (Prevention of Pollution from Ships) Act 1983 Australian Government

Regulation(s) name

Marine Order 96 (Marine Pollution Prevention - Sewage) 2018 Australian Government

Administering agency

Australian Maritime Safety Authority

Marine Environment Division

Contact details

Contact Email, Phone and Address Details for this service in simple two column table format, header then data.

Please use these contact details for help or more information:


Marine Environment Division

Australian Maritime Safety Authority

Operating address: 82 Northbourne Avenue
Braddon, Australian Capital Territory 2612
Mailing address: GPO BOX 2181
Canberra, Australian Capital Territory 2601
Phone: 02 6279 5040
Fax: 02 6279 5026