From: Transport Canada The Canadian Ballast Water Program Environmental Protection Marine Pollution Sources and Regulations The Canadian Ballast Water Program Ballast Water Defined Ballast Water Management Ship-mediated Introductions Alien Invasive Species Public Education and Outreach Related Links Phasing out of Single-Hulled Tankers Reporting of Pollution Civil Liability Insurance for Marine Pollution Contact Us Table of Contents: Ballast water defined What is ballast? Why do ships carry ballast water? Why is ballast water an issue? Discharges in Canadian waters - Statistics Ballast water management Management processes Ballast water exchange Treatment technologies NOBOBs Ship-mediated introductions Ship-mediated introductions Shipping activities in Canadian waters Alien invasive species Introduction of alien species Ecological impacts Economic impacts Environment and Public Health Public Educations and Outreach Related Links