theory and experience clearly shows that relying on tac management alone results in overcapacity shortened fishing seasons and fluctuating landings oecd additionally overexploitation has not generally been prevented in fisheries managed solely by tacs reasons for this may include the level of the tacs and lack of compliance however setting the appropriate tac is not always straightforward especially when there is considerable uncertainty and different views about how to measure the stock and its carrying capacity transparency in the estimation of the tac and information sharing with stakeholders on the process and assumptions behind the estimation is an important part of a fisheries rebuilding plan as a consensus or common understanding of the biological situation and the targets chosen can help ensure buyin by relevant stakeholders if fishers and other stakeholders disagree or are uncertain about the fundamental state of the stocks they may be less likely to adhere to and support a rebuilding plan