To help protect water quality in relation to boating activities, TVA set up the Tennessee Valley Clean Marina Initiative, which addresses such activities as sewage management, oil and gas control, marina siting, and erosion prevention. The program certifies marinas that are in compliance with pollution-control standards and allows them to use the Clean Marina logo and flag. For marina owners, it makes good business sense to protect the resource on which their livelihood depends. View a listing of Certified Clean Marinas on the Tennessee River system.