The Maritime Transport and Offshore Facilities Security (Prohibited Items) Determination 2026, issued by Australia's Department of Home Affairs, formally defines and lists prohibited items within the scope of maritime transport and offshore facilities security. This determination is made under the authority of the Maritime Transport and Offshore Facilities Security Act 2003 and establishes the specific items that are not permitted, thereby updating or clarifying security protocols for vessels and facilities.

Entities involved in maritime transport, including importers, exporters, and transportation companies, must familiarize themselves with the newly defined list of prohibited items. Compliance with this determination is mandatory to ensure the security of maritime operations and offshore facilities. Failure to adhere to these regulations may result in penalties or other enforcement actions under the principal Act. The determination takes effect on March 23, 2026.