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Marpol : Annex VI: International Convention for the Prevention of…

- - - - Vapour Emission Control Systems (VECS) provided at ports and terminals
      - Tankers of Crude Oil must have onboard and implement a VOC Management Plan
      - Procedures & Arrangements Manual: for Noxious Liquid Substances in Bulk (NLS)
    - - Control measures are to properly maintain
        engines to ensure the manufacturers designed parameters for emission are maintained.
        And use of the correct fuels at all times.
- - - - Incinerator Ash: land for shore disposal
    - - What cannot be burnt in incinerator
        
        Cargo residues subject to Annexes I, II,III or associated contaminated packaging
        
        PSBs (polychlorinated biphenyls)
        
        Petroleum products containing halon compounds
        
        Sewage and sludge oils that have not been generated onboard the vessel.
        
        Exhaust gas residues
        
        PVC (polyvinyl chlorides): Unless the incinerator is IMO certified by the flag state as approved to burn plastics
        
        The incinerator must not be used while in port.
- - - - 17.0 g/kWh when rpm less than 130rpm
  - - - 45 x n to the power of (-0.2) g/kWh when n=rpm more than 130 but less than 2000 rpm
  - - - 9.8 g/kWh when rpm greater than 2000 rpm
      - Between 2000 and 2016 the progression to Tier 3 represents a decrease in the NOx emissions
        allowed
      - Older Tonnage: 1990-2000 with engines of 5000 kW or more compliance to be to Tier 1 requirements
      - Older tonnage and below 5000 kW power any controls on emissions are for the flag state to determine.
- - - - Pre-2010 1.5% m/m sulphur (m/m=measured by mass)
      - Reduced by IMO 2010-15 to 1.0%
        
        Further reduction after 2015 to 0.1%
    - - Max of 4.5% m/m sulphur
        
        Reducing after 01st Jan 2012 to 3.5% m/m sulphur
        
        Further reductions ongoing until 01st Jan 2020 to 0.5 % m/m sulphur (this is known as the Global Sulphur Cap)