Is CO's permission necessary to discharge sewage?

The requirement for obtaining the commanding officer's (CO's) permission to discharge sewage revolves around the regulations governing waste management aboard vessels. Discharge procedures can vary based on factors such as the location of the vessel, operational status, and specific environmental regulations.

In this context, it's accurate that the CO's permission is not needed for discharging sewage specifically unless other protocols or environmental considerations dictate otherwise. Typically, sewage discharge is governed by established regulations that allow for discharge under certain circumstances, particularly when the vessel is operating outside of designated no-discharge zones.

Permission may be required for other types of waste, such as hazardous materials or garbage, which are often subject to more stringent regulation. When handling these materials, the CO's approval is generally necessary to ensure compliance with safety and environmental standards.

Therefore, the correct understanding lies in recognizing that while sewage management is crucial, CO permission is specifically mandated for other waste types, aligning with broader waste management protocols aboard the vessel.