STCW Marine Environmental Protection & Compliance 5 — Questions and Answers
Question 1: What does the acronym 'ECA' stand for in the context of MARPOL Annex VI?
- Environmental Compliance Area
- Emission Control Area (Correct answer)
- Energy Conservation Act
- Ecological Conservation Annex
Correct answer: Emission Control Area
Emission Control Areas are designated sea zones where stricter limits on SOx, NOx, and particulate matter emissions apply to ships under MARPOL Annex VI.
Question 2: When must entries be made in the Oil Record Book Part II (cargo/ballast operations) on an oil tanker?
- Only when a spill occurs
- After each cargo loading, unloading, ballasting, or tank cleaning operation (Correct answer)
- Once per voyage at the end of the passage
- Only in port when a flag state inspector is present
Correct answer: After each cargo loading, unloading, ballasting, or tank cleaning operation
Part II entries are required promptly after each cargo, ballast, or tank cleaning operation on oil tankers to maintain an accurate continuous record.
Question 3: Which of the following best describes an 'exhaust gas cleaning system' (scrubber) on a ship?
- A device that removes CO2 from engine exhaust for carbon capture
- A system that washes exhaust gases to remove sulfur oxides, allowing use of higher-sulfur fuel (Correct answer)
- A filter that captures black carbon (soot) particles before emission
- Equipment that measures NOx content in exhaust
Correct answer: A system that washes exhaust gases to remove sulfur oxides, allowing use of higher-sulfur fuel
Scrubbers (EGCS) spray water through exhaust gas to remove SOx, enabling compliance with low-sulfur ECA requirements while burning higher-sulfur fuel oil.
Question 4: Under MARPOL Annex I, which condition must be met before discharging processed bilge water outside a special area?
- Oil content must be less than 15 ppm and the OWS must be in operation with the overboard valve monitored (Correct answer)
- The discharge must be approved by port state control in advance
- The ship must be stationary and flying a special flag
- Oil content must be zero and the master must sign a discharge log
Correct answer: Oil content must be less than 15 ppm and the OWS must be in operation with the overboard valve monitored
Regulation 15 of Annex I requires oil content below 15 ppm, use of approved OWS equipment, and recording the discharge in the Oil Record Book.
Question 5: What is the purpose of the Ballast Water Record Book?
- To record the chemical composition of ballast water treatment agents
- To log all ballast water uptake, treatment, exchange, and discharge operations for inspection (Correct answer)
- To certify that ballast tanks are structurally sound
- To document the number of organisms found in each ballast tank
Correct answer: To log all ballast water uptake, treatment, exchange, and discharge operations for inspection
The Ballast Water Record Book provides a traceable operational history of ballast management activities for port state control verification under the BWM Convention.
Question 6: A port state control officer suspects the Oil Record Book entries have been falsified. What authority does the officer have?
- None—the flag state has exclusive jurisdiction over the record book
- Authority to detain the vessel pending investigation and refer the case to the flag state or relevant authorities (Correct answer)
- Authority only to issue a warning with no detention power
- Authority to confiscate the record book permanently
Correct answer: Authority to detain the vessel pending investigation and refer the case to the flag state or relevant authorities
Port state control officers can detain vessels and report falsification of records to flag states and national prosecutors, as falsification is a serious violation under MARPOL.
Question 7: Which IMO instrument specifically requires ships to have a Shipboard Marine Pollution Emergency Plan (SMPEP)?
- SOLAS Chapter II-2
- MARPOL Annex I (Regulation 37) and Annex II (Regulation 17) (Correct answer)
- ISM Code Section 8
- STCW Convention Table A-V/1-1
Correct answer: MARPOL Annex I (Regulation 37) and Annex II (Regulation 17)
MARPOL Annex I Regulation 37 and Annex II Regulation 17 require an approved SMPEP on tankers and other ships above specified thresholds, detailing spill response procedures.
STCW Marine Environmental Protection & Compliance 5
What does the acronym 'ECA' stand for in the context of MARPOL Annex VI?