MARPOL ANNEX 2 MEO CLASS4 ORALS

 MARPOL ANNEX 2

REGULATION FOR CONTROL OF POLLUTION BY NOXIOUS LIQUID SUBSTANCE IN BULK.

APPLICABLE TO:

• ship which carrying noxious liquid substance and chemicals In bulk,

NOT APPLICABLE TO:

• Harmful substances carried in any kind of package.

Liquid substance and chemicals which are carried in bulk annex 2 came into force on 6th April 1987,

Carriage of chemical covers under two main conventions.

1. SOLAS CHAPTER 7
2. MARPOL ANNEX 2

both of the conventions required chemical tankers which are buit after 1st July 1986 to comply with international bulk chemical code 

IBC (INTERNATIONAL BULK CHEMICAL CODE)

• IBC CODE booklet carried all ships which carrying chemicals and noxious liquid substance in bulk by sea.
• It contains  some safety standards  which are to be maintained while carriage of dangerous chemicals and noxious liquid substance in bulk.
• It also sets out minimum design and construction of these vessel.
• Ibc code contain complete list of chemicals and their environment hazard rating,
• Asper annex 2 noxious liquid substance which are carried by sea are categorised into main categories,
• Based of harm that they can cause to the marine environment.

1. Catagory X 
2. Category Y 
3. Catagory Z 
4. Other substances

CATAGORY X 

• when discharging into sea from tank cleaning or D-ballasting operation are deemed to present major hazard to the marine environment as well as human health.
• Therefore they are prohibited to discharge into sea.

CATAGORY Y 

• when discharging into sea from tank cleaning or D-ballasting operation present in hazard to marine environment.
• But not a major one but still a hazard to the marine environment,
•  so therefore some limitations on quantity and quality of discharge of substance into sea 

CATEGORY Z 

• when discharging into sea from tank cleaning or D-ballasting operation present in minor hazard to the marine environment,
• Therefore there are less stringent restrictions which are to be followed while discharge into sea on quality and quantity.

OTHER SUBSTANCES 

• which are carried no harm to the marine environment so no restriction to discharging into sea after tank cleaning or D-ballasting.

PARAMETERS OF DISCHARGING NOXIOUS LIQUID SUBSTANCE IN BULK.

• speed of the vessel while discharging.
• Minimum discharge from the nearest land while discharging.
• Minimum depth of the sea while discharging.
• Weather discharging is being carried out above the water line or below the water line

 

DISCHARGE CRITERIA 

• ship proceeding enrouted
• Speed of the ship minimum 7knots for self propelled ship, for not self propelled ship minimum 4knots 
• Should be 12meter or above from the nearest land.
• Discharge through below the water line 
• Underwater discharge outlet not exceeding the minimum rate which its designed.
• Depth of the water should not be less than 25 meters,

SPECIAL AREA UNDER ANNEX 2

• Antarctic sea area.

P AND A MANUAL 

• every ship which carry noxious liquid substance in bulk, needs to carry p and manual.
• Which is the procedure and arrangements manual which is approved by administration.
• This manual contain some important guidelines nad operational procedures which needs be followed during cargo handling tank cleaning  and slope handling and cargo hold D-ballasting operations.

CARGO RECORD BOOK 

• kept in 3 years 
• Every ship carry noxious liquid substance should  carry cargo record book.
• Each operation should be signed by officer incharge.
• Each page signed by master of the ship.
• Kept in readily available location for inspection.

ENTRIES OF CARGO RECORD BOOK 

• loading of cargo.
• Internal transfer cargo during voyage.
• Unloading of cargo.
• Mandatory pre-wash .
• Discharge into sea if tank washing.
• Ballasting of from tank .
• Discharge of ballast water from cargo tank.
• Accidentally or exceptional discharge 
• Controlled by authorised survayer 
• And additional operational procedures and remarks.