USCG Exam PracticePollution prevention and environmental awareness
Under 33 CFR §151.10, what is the maximum oil content of effluent that may be discharged overboard from machinery space bilges when a non-tanker vessel is more than 12 nautical miles from the nearest land and proceeding enroute?
- ✓ Less than 15 parts per million (ppm)Correct
- B. Less than 100 parts per million (ppm)
- C. Less than 50 parts per million (ppm)
- D. Less than 25 parts per million (ppm)
Why A is correct
33 CFR §151.10(a)(5) requires that the oil content of the effluent without dilution be less than 15 ppm. This threshold applies whether the vessel is more than or within 12 nautical miles from the nearest land.
Cited:33 CFR §151.10