This paper proposes amendments to strengthen Conservation Measure 10-09 by addressing gaps in the monitoring of transhipments. Currently, most of the transhipments in the Convention Area occur between vessels licensed to fish in the Convention Area and vessels of Non-Contracting parties (NCPs). The proposed amendments establish a CCAMLR Record of Carrier Vessels, which may include NCP vessels, and prohibit a Contracting Party vessel from transhipping inside the Convention Area with a vessel that is not authorised under Conservation Measure 10-02 or included on the CCAMLR Record of Carrier Vessels. The amendments would further prohibit a vessel authorised under Conservation Measure 10-02 from transhipping inside the Convention Area with another vessel that is not authorised under Conservation 10-02, or included on the CCAMLR Record of Carrier Vessels. As such, the proposed amendments would assist in preventing support for, and concealment of, IUU fishing through transhipments, and would also improve understanding of transhipment activities involving Antarctic marine living resources harvested inside the Convention Area.