What must a type III marine Sanitation devicee have one boating on inland waters?

A Type III Marine Sanitation Device (MSD) must be installed on boats operating in inland waters to prevent the discharge of untreated sewage. It is designed to hold waste until it can be properly disposed of at a pump-out station. This device must be compliant with the regulations set by the Environmental Protection Agency (EPA) and must not allow any overboard discharge. Additionally, it should be labeled to indicate that it is a Type III MSD to ensure proper usage and compliance with sanitation laws.