Question 614General Subjects - Assistant Engineer

The correct answer is B) A device that is designed to prevent the overboard discharge of treated or untreated sewage or any waste derived from sewage. This is the correct answer because under 33 CFR Subchapter O, a "Type III Marine Sanitation Device" is defined as a device that is designed to prevent the overboard discharge of treated or untreated sewage or any waste derived from sewage. It is not defined by the specific water quality parameters described in the other answer choices. The other answer choices are incorrect because they describe the definitions of other types of marine sanitation devices, such as Type I (A) and Type II (C), but not the definition of a Type III device as specified in the regulations.