ELI’s report, Halting the Invasion in the Chesapeake Bay, examines the complex issues faced in addressing the issue of aquatic invasions in the Chesapeake Bay. The report analyzes laws and regulations that affect aquatic invasive species prevention efforts, such as the pet trade, importation of aquarium fish, aquaculture, and other commercial enterprises, and makes recommendations intended to harmonize inter-state efforts in the Chesapeake Bay under existing authorities and to strengthen the existing legal infrastructure.