USCG Exam Practice · MARPOL and discharge regulations
Under 33 CFR §151.13, a vessel of less than 400 gross tons (other than an oil tanker) operating within an Annex I special area may discharge oily mixture only if which condition is met?
- AThe vessel is proceeding en route at a speed of not less than 7 knots
- BThe oil content of the effluent without dilution does not exceed 15 ppm✓ correct
- CThe discharge occurs more than 12 nautical miles from the nearest land
- DThe vessel has an approved oil discharge monitoring and control system in operation
Why B is correct
33 CFR §151.13(b)(2) permits a vessel of less than 400 gross tons, other than an oil tanker, to discharge oil or oily mixture within a special area only if the oil content of the effluent without dilution does not exceed 15 ppm. The distance and speed conditions cited in the distractors are not stated as the applicable standard for this vessel class within a special area.
Cited:33 CFR §151.13
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