Canadian Boating Practice Exam

All vessels fitted with a toilet must be equipped with a marine sanitation device or a holding tank. This is to ensure proper waste management and prevent pollution of waterways. Option B, a portable toilet, may not be as effective in containing and disposing of waste. Option C, an automatic cleaner, is not a necessary requirement for a vessel with a toilet. Option D, a grey water filtration system, is used for filtering out non-toilet waste water and has no effect on the disposal of toilet waste. Therefore, A is the most appropriate and necessary option for vessels with a toilet.