A proposal for a Joint SC-CAMLR and SC-IWC two-day Workshop to develop multi-species models of the Antarctic marine ecosystem was discussed at the SC-CAMLR 2014, and a steering group to progress a Joint IWC–CCAMLR Workshop was formed (SC-CAMLR 2014 Paragraph 10.25). The joint workshop was perceived as an opportunity to increase knowledge on specific species and their interactions in different management areas, possibly initially focussing on the Antarctic Peninsula given it is a high-priority area for both CCAMLR and IWC (IWC SC 2015 Report). The steering group developed a paper identifying draft terms of reference (SC-CAMLR-XXXIV/BG/33). This was tabled to and endorsed by the SC-CAMLR 2015. This ToR is also scheduled to be discussed at the IWC-SC meeting in June 2016 together with the draft agenda proposed in this document.