Western Australian estuaries have been fished for as long as humans have inhabited the surrounding areas, with the first commercial estuarine fisheries established in the early 1800s. Over time, population growth and an increasing number of recreational fishers has led to greater competition for the estuarine resources and buy-outs of commercial fishers have been implemented in some estuaries to reduce conflict between user groups. In the Peel-Harvey Estuary near Mandurah, a recent Government initiative has supported the commercial and recreational fishing sectors to work together to promote their sustainability and ensure future access to the resources. In a world first, the commercial and recreational fisheries for Peel-Harvey Estuary blue swimmer crabs have been jointly assessed against the Marine Stewardship Council (MSC) standard for sustainable fishing. Although certification is expected to provide both sectors with a social licence to continue fishing the estuary, the process has also presented a number of challenges that will need to be addressed over the next five years. This talk will focus on the gaps identified as part of the MSC assessment and outlines the strategies and research plans proposed to deal with the conditions placed on these fisheries.