This chapter examines Canadian law and policy that addresses marine aquaculture proposals and operations, in light of four key principles:1 integration, precaution, environmental impact assessment, and public participation.2 The first part assesses the extent to which the federal government, the province of British Columbia and the Atlantic provinces (New Brunswick, Nova Scotia, Prince Edward Island, and Newfoundland and Labrador) have applied the four principles. The second part provides recommendations for charting a clearer course for sustainable aquaculture and raises key questions that need to be considered, such as whether adequate legal foundations exist for integrated coastal/ocean planning.