An OMP for recommending the TAC for South Coast rock lobster resource was developed and first implemented for 20081 (Johnston and Butterworth 2008). This OMP was intended to be implemented for two years, following which a review of the underlying operating models would decide whether this OMP could be implemented “as is” for a further two years (2010 and 2011) or if updates/retuning of this OMP would be required. In April 2010 the Rock Lobster Scientific Working Group (SWG) reviewed the 2010 updated assessment models of the resource (Johnston and Butterworth 2010a) and decided that these assessments showed some important changes with respect to the possible productivity of the resource compared to the 2008 operating models upon which the existing OMP-2008 had been simulation tested. A set of five updated operating models (OMs) were then selected against which to retest a revised OMP.