Maritime Compliance 13 items
MARPOL Annex VI NOx Tier III and Exhaust Gas Cleaning
Verifies NOx Tier III control in emission control areas and the operation of exhaust gas cleaning systems, covering SCR reductant, washwater, and record keeping.
MARPOL Annex VINOx Technical Code 2008
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NOx Tier III Compliance
- Are engines subject to Tier III operated in the required mode when entering a NOx Emission Control Area? *
- Is a valid Engine International Air Pollution Prevention (EIAPP) certificate held for each applicable engine? *
- Is the entry and exit from the NOx ECA, with Tier III activation, recorded in the logbook? *
Selective Catalytic Reduction (SCR)
- Is sufficient reductant (urea) on board for the intended Tier III operation? *
- Is the SCR reactor operating within its required exhaust temperature window? *
- Are reductant dosing and ammonia slip within the parameters of the technical file? *
- Enter the quantity of urea reductant on board in cubic metres.
Exhaust Gas Cleaning System (Scrubber)
- Is the EGCS operated in accordance with its approved SOx Emissions Compliance Plan and Technical Manual? *
- Is washwater monitoring (pH, PAH, turbidity) within the discharge criteria and recorded? *
- Are washwater discharge prohibitions in ports or areas that restrict open-loop operation observed? *
- Is EGCS residue retained on board and discharged only to reception facilities? *
Records and Fallback
- Is a fallback plan (compliant fuel or reduced operation) available if the SCR or scrubber becomes inoperative? *
- Are continuous emissions or parameter monitoring data recorded and retained for inspection? *
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