Transport Canada’s Ship Safety Bulletin 10/2022 outlines discharge requirements for cruise ship operating in waters under Canadian jurisdiction in 2023. The measures originally introduced in 2022 requests that cruise ships avoid discharging greywater and sewage within 3 nautical miles of shore, when possible; treat greywater with sewage before it is discharged between 3 and 12 nautical miles from shore, as much as possible; and use an approved device to treat sewage between 3 and 12 nautical miles from shore. These enhanced measures will remain until they become permanent through either an interim order or regulation.
