Marine Order 12 (Construction ? subdivision and stability, machinery and electrical installations) - Australian Government


You will be required to comply with this standard if you intend to operate a ship as an off-shore supply vessel.

An offshore supply vessel is a vessel that is:

  • Primarily engaged in the transport of stores, materials and equipment to offshore installations; and
  • Designed with the accommodation and bridge erections in the forward part of the vessel and an exposed cargo deck in the after part for the handling of cargo at sea.

If a ship is operated as an offshore supply vessel it must meet certain requirements, including:

  • The requirements in Part 2 and 3 of the Guidelines; and
  • An opening in a watertight bulkhead one or both sides of which may be subjected to flooding under the assumptions of 3.2 of the Guidelines must be fitted with a sliding watertight door.

Please consult the Contact Officer for more information and to ascertain the level of compliance (if any) that may be required.

Service type

Code of Practice

A code of practice can be either a legal requirement or non-legal requirement. Legal codes of practice are defined as a result of legislation. Non-legal codes of practice are defined by industry regulators and bodies.

Act(s) name

Navigation Act 2012 AG

Administering agency

Australian Maritime Safety Authority

Ship Safety Division

Contact details

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


Ship Safety Division

Australian Maritime Safety Authority

Operating address: 82 Northbourne Avenue
Australian Capital Territory 2612
Mailing address: GPO BOX 2181
Canberra, Australian Capital Territory 2601
Phone: 02 6279 5000