MARPOL ANNEX VI
International regulation for prevention of AIR Pollution from Ships
Enforcement: 19 May 05
Amended: 1 July 2010
Chapter 1 - General
Regulation 1: Application
The provisions of this Annex shall apply to all ships, except where expressly provided
Regulation 2: Definitions
Regulation 3: Exceptions and exemptions
- Regulations of this Annex shall not apply to:
- any emission necessary for the purpose of securing the safety of a ship or saving life at sea
- any emission resulting from damage to a ship
- The Admin, as appropriate, issue an exemption for a ship to conduct trials for the development of ship emission reduction and control technologies and engine design programmes under NOx Technical Code 2008.
- the type or types of emission(s) that is or are being proposed for control (i.e., NOx or SOx and
- particulate matter or all three types of emissions);
- Emissions directly arising from the exploration, exploitation and associated offshore processing of sea-bed mineral resources are, exempt from the provisions of this Annex.
Regulation 4: Equivalents
Admin may allow fitting of material or systems that are equivalent to the approved systems, only if, they satisfactorily perform as specified.
Chapter 2 - Survey, certification and means of control
Regulation 5: Surveys
Every ship of GT >= 400,
- Initial Survey: Before the ship is put in service or before the Certificate (IAPPC) is issued for the first time.
- Renewal Survey: <= 5 years.
- Intermediate Survey: Within 3 months before/after 2nd/3rd Anniversary Date of the Certificate.
- Annual Survey: Within 3 months before/after each anniversary date.
- Additional Survey: Either general or partial, according to the circumstances such as major repair, replacement of the approved items/machinery as per this Annex.
- The Administration must appoint a competent surveyor officer to carry out various surveys. Such an officer holds the power to dismiss a vessel until its defects are rectified.
- No changes to be made to equipment post survey without permission.
Regulation 6: Issue or endorsement of a Certificate
- International Air Pollution Prevention Certificate shall be issued, after an initial or renewal survey for the following:
- any ship of 400 gross tonnage and above
- platforms and drilling rigs
- International Energy Efficiency Certificate: This certificate is issued upon Annual Survey for ships of GT >= 400 by the Admin.
Regulation 7: Issue of a Certificate by another Party
- A Govt of a party to this convention, upon request by the Admin, shall do a survey of their vessel and upon satisfaction, issue IOPPC.
- A copy of such certificate must be submitted to th Admin as soon as possible.
Regulation 9: Form of certificate
- The following Certificates shall be at least English, French or Spanish. If an official language of the issuing country is also used then its advised to keep a translation copy in above said languages:
- International Air Pollution Prevention Certificate
- International Energy Efficiency Certificate
Regulation 10: Duration and validity of certificate
- IAPPC must be issued for <= 5 years.
- If renewal of cert not done within 3 months of anniversary date, then new cert shall be valid from the date of completion of the renewal survey to a date not exceeding five years from the date of expiry of the existing certificate.
- If at the time of the survey, ship is not in port, then a max extension of 3 months shall be allowed, only to allow it to reach the survey port.
- If of the ship is changed then existing cert becomes invalid and new cert is issued by the new govt within 3 months of transfer to that flag.
- If alterations or No compliance is observed then validity of the cert is revoked.
- International Energy Efficiency Certificate shall be valid for the lifetime of the ship, subject to following conditions:
- If the ship is withdrawn from service or if a new certificate is issued following major conversion of the ship.
- Upon transfer of the ship to the flag of another State. New cert upon survey shall be issued by the new govt to the party of this convention within 3 months of transfer to their flag.
Regulation 11: Port State control on operational requirements
- A ship when in a port of another Party is subject to inspection by officers duly authorized, where there are clear grounds for believing that the master or crew are not familiar with essential shipboard procedures relating to the prevention of pollution by oil, in such a case the Party shall take such steps as will ensure that the ship shall not sail until the situation has been brought to order in accordance with the requirement of this Annex.
Regulation 11: Detection of violations and enforcement
- Parties shall co-operate in the detection of violations and the enforcement of the provisions of this Annex, using all appropriate and practicable measures of detection and environmental monitoring, adequate procedures for reporting and accumulation of evidence.
- A ship in port/terminal shall be inspected by officers appointed by Party and if any violation is observed then corrective action shall be taken by Admin and a report to be submitted.
Regulation 12: Ozone-depleting substances
- This regulation does not apply to permanently sealed equipment where there are no refrigerant charging connections or potentially removable components containing ozone-depleting substances.
- Any deliberate emissions of ozone-depleting substances shall be prohibited. Deliberate emissions include emissions occurring in the course of maintaining, servicing, repairing or disposing of systems or equipment.
- For ships constructed on/after 19 May 05, use of HCFC (hydrocloroflorocarbon) are prohibited and must cease to operate by 1 Jan 2020.
- For ships constructed on/after 1 Jan 2020, use of HCFC must be banned for ever.
- The substances referred to in this regulation, and equipment containing such substances, shall be delivered to appropriate reception facilities when removed from ships.
- Maintain a list of equipment containing ozone-depleting substances
- Ozone Depleting Subs Record Book :Entries to be made in it.
- recharge, full or partial
- repair or maintenance of equipment
- discharge to atmosphere
- discharge to shore reception facilities
- supply of such substances to ships
Regulation 13: Nitrogen oxides (NOx)
- It applied to each engine >= 130 kW
- Does not apply to Engines used for the Emergencies such as Emer. Gen. or Lifeboat Engine
- If a ship sails only in state of entitled flag and has alternate methods to control NOx
- Any ship's Main Engine that is modified on/after 1 Jan 2000 and:
- Ship's engine is replaced by another
- Major modification happened acc to NOx Technical Code 2008
- Net MCR increased by 10% of original certification
Subject to regulations of this Annex, the operation of a marine diesel engine that is installed on a ship, the following Tiers are provided:
|Tier||Ship construction date on or after|
Total weighted cycle emission limit (g/kWh)
n = engine’s rated speed (rpm)
|n < 130||n = 130 - 1999||n ≥ 2000|
|I||1 January 2000||17.0|
e.g., 720 rpm – 12.1
|II||1 January 2011||14.4|
e.g., 720 rpm – 9.7
|III||1 January 2016*||3.4|
e.g., 720 rpm – 2.4
(calculated as the total weighted emission of N02)
n — rated engine speed (crankshaft revolutions per minute)
Emission control area
SECA turns out to be ECA (revision)
the North American area and some more (coming)
Marine diesel engines installed on a ship constructed prior to 1 January 2000
With regard to a ship with a marine diesel engine with a power output of more than 5,000 kW and a per cylinder displacement at or above 90 L, installed on a ship constructed on or after 1 Jan 90 but prior to 1 January 2000, the IAPPC shall, for a marine diesel engine to this regulation applies, indicate that either an approved method has been applied.
Like SCR NOx Removal System.
The revised NOx Technical Code 2008 shall be applied in the certification, testing and measurement procedures for the standards set forth in this regulation.
The procedures for determining NOx emissions set out in the revised NOx Technical Code 2008 are intended to be representative of the normal operation of the engine. Defeat devices and irrational emission control strategies undermine this intention and shall not be allowed.
Regulation 14: Sulphur oxides (SOx)
and particulate matter
The sulphur content of any fuel oil used on board ships shall not exceed the following limits:
- 4.50% m/m prior to 1 January 2012
- 3.50% m/m on and after 1 January 2012
- 0.50% m/m on and after 1 January 2020
While ships are operating within an emission control area, the sulphur content of fuel oil used on board ships shall not exceed the following limits:
- 1.50% m/m prior to 1 July 2010
- 1.00% m/m on and after 1 July 2010
- 0.10% m/m on and after 1 January 2015
Those ships using separate fuel oils to comply regulation and entering or leaving an emission control area of this regulation shall carry a written procedure showing how the fuel oil changeover is to be done, allowing sufficient time for the fuel oil service system to be fully flushed of all fuel oils exceeding the applicable sulphur content The volume of low sulphur fuel oils in each tank as well as the date, time and position of the ship when any fuel oil changeover operation is completed prior to the entry into an emission control area or commenced after exit from such an area shall be recorded in Manoeuvring Log Book.
Regulation 15: Volatile organic compounds (VOCs)
- If the emissions of volatile organic compounds (VOCs) from tankers are to be regulated in ports or terminals under the jurisdiction of a Party to the Protocol of 1997, they shall be regulated in accordance with the provisions of this regulation
- A Party to the Protocol of 1997 which designates ports or terminals under its jurisdiction in which VOCs emissions are to be regulated shall submit a notification to the Organization. This notification shall include information on the size of tankers to be controlled, on cargoes requiring vapour emission control systems, and the effective date of such control. The notification shall be submitted at least six months before the effective date.
- The Government of each Party to the Protocol of 1997 which designates ports or terminals at which VOCs emissions from tankers are to be regulated shall ensure that vapour emission control systems, approved by that Government taking into account the safety standards developed by the Organization,* are provided in ports and terminals designated, and are operated safely and in a manner so as to avoid undue delay to the ship
- The Organization shall circulate a list of the ports and terminals designated by the Parties to the Protocol of 1997 to other Parties to the Protocol of 1997 and Member States of the Organization for their information
- All tankers which are subject to vapour emission control in accordance with the provisions of paragraph (2) of this regulation shall be provided with a vapour collection system approved by the Administration taking into account the safety standards developed by the Organization, and shall use such system during the loading of such cargoes. Terminals which have installed vapour emission control systems in accordance with this regulation may accept existing tankers which are not fitted with vapour collection systems for a period of three years after the effective date identified in paragraph (2)
- This regulation shall only apply to gas carriers when the type of loading and containment systems allow safe retention of non-methane VOCs on board, or their safe return ashore.
Regulation 16: Shipboard incineration
- residues of cargoes subject to Annex I, II or III or related contaminated packing materials
- polychlorinated biphenyls (PCBs)
- garbage, as defined by Annex V, containing more than traces of heavy metals
- refined petroleum products containing halogen compounds
- sewage sludge and sludge oil either of which is not generated on board the ship
- exhaust gas cleaning system residues
- Shipboard incineration of polyvinyl chlorides (PVCs) shall be prohibited
- Incinerators installed in accordance with the requirements of this regulation shall be provided with a manufacturer's operating manual, which is to be retained with the unit and which shall specify how to operate the incinerator within the limits
- The combustion chamber gas outlet temperature shall be monitored at all times the unit is in operation.
- Where that incinerator is of the continuous-feed type, waste shall not be fed into the unit when the combustion chamber gas outlet temperature is below 850°C. Where that incinerator is of the batch-loaded type, the unit shall be designed so that the combustion chamber gas outlet temperature shall reach 600°C within five minutes after start-up and will thereafter stabilize at a temperature not less than 850°C.
Regulation 17: Reception facilities
Each Party undertakes to ensure the provision of facilities adequate to meet the:
- Needs of ships using its repair ports for the reception of ozone-depleting substances and equipment containing such substances when removed from ships
- Needs of ships using its ports, terminals or repair ports for the reception of exhaust gas cleaning residues from an exhaust gas cleaning system
Regulation 18: Fuel oil availability and quality
Fuel oil availability
Each Party shall take all reasonable steps to promote the availability of fuel oils that comply with this Annex
If a ship is observed not following the compliance then it must be encouraged to comply by proving a report of incidence and evidence of the fresh compliance.
A Party shall notify the Organization when a ship has presented evidence of the non-availability of compliant fuel oil.
A ship shall notify its Administration and the competent authority of the relevant port of destination when it cannot purchase compliant fuel oil.
Fuel oil availability
Fuel oil quality
- Fuel oil for combustion purposes delivered to and used on board ships to which this Annex applies shall
meet the following requirements:
- Not exceed the applicable sulphur content
- Not cause an engine to exceed the applicable NOx emission limit
- Not contain inorganic acid or be harmful to personnel
- Not jeopardize the safety of ships
- Not adversely affect the performance of the machinery
- This regulation does not apply to coal in its solid form or nuclear fuels.
- Fuel oil for combustion purposes delivered to and used on board shall be recorded by means of a bunker delivery note.
- BDN to be retained for atleast 3 years from the date of delivery of oil.
- Inspection of BDN shall happen for trueness of the details
- The bunker delivery note shall be accompanied by a representative sample of the fuel oil delivered.
- The sample is to be sealed and signed by the supplier's representative and the master or officer in charge of the bunker operation on completion of bunkering operations and retained under the ship's control until the fuel oil is substantially consumed, but in any case for a period of not less than 12 months from the time of delivery.
- Parties undertake to ensure that appropriate authorities designated by them:
- maintain a register of local suppliers of fuel oil
- require local suppliers to provide the bunker delivery note and sample as required by this regulation
- require local suppliers to retain a copy of the bunker delivery note for at least three years for inspection and verification by the port State
- take action as appropriate against fuel oil suppliers that have been found to deliver fuel oil that does not comply with that stated on the bunker delivery note
- inform the Administration of any ship receiving fuel oil found to be non-compliant with the requirements
Information to be included in the bunker delivery note
- Name and IMO Number of receiving ship
- Date of commencement of delivery
- Name, address and telephone number of marine fuel oil supplier
- Product name(s)
- Quantity in metric tonnes
- Density at 15°C, kg/m3
- Sulphur content (% m/m)
- A declaration signed and certified by the fuel oil supplier's representative that the fuel oil supplied is in conformity with the applicable regulation of this Annex.
Thats All Folks :)