Which vessels are required to have a placard reading 'Discharge of Oil Prohibited'?

The requirement for a placard reading 'Discharge of Oil Prohibited' is specifically mandated for vessels that are 26 feet and over with an enclosed machinery space. This regulation is in place to prevent pollution from oil discharges into navigable waters. Vessels of this size typically have engines and other machinery that could pose a risk of oil leaks or spills, hence the need for proper signage to inform crew and operators of their obligations toward oil discharge.

Having this placard ensures that anyone operating or working on the vessel is aware of the prohibition and the potential environmental consequences. This awareness is crucial for maintaining compliance with environmental regulations designed to protect marine ecosystems. While smaller vessels and personal boats have their own set of rules, they are generally not subject to the same stringent requirements unless they are in a commercial capacity or fall under specific regulations. Thus, the option focusing on vessels of 26 feet and over with enclosed machinery spaces directly aligns with the regulatory framework aimed at minimizing the risk of oil discharge.