MARPOL 73/78 ANNEX II INSTRUCTOR: R. HILLADO

MARPOL 73/78 ANNEX II INSTRUCTOR: R. HILLADO.

Main features of MARPOL 73/78, Annex II. Description of ships equipment and arrangements Cargo loading, Unloading and tank stripping procedures Procedures relating to cleaning of cargo tanks, the discharge of residues , Ballasting and de- ballasting Flow Diagrams & drawings.

NOXIOUS LIQUID SUBSTANCE IN BULK. ANNEX II covers all liquid substances, which represent a potential hazard to the marine environment. The only exception to this is with regard to mineral oils as these are regulated under annex 1. The annex II Regulation for the control of pollution by noxious liquid substances in bulk define four-category categorization system for noxious and liquid substances..

. Chemical tanker.

NOXIOUS LIQUID SUBSTANCE IN BULK. Category A – noxious liquid substances if discharged into the sea from tank cleaning or deballasting operations would present a major hazard to either marine resources or human health or cause serious harm amenities or other legitimate uses of the sea and therefore justify the application of stringent anti- pollution measures..

NOXIOUS LIQUID SUBSTANCE IN BULK. Category B – noxious liquid substances if discharge into the sea from tank cleaning or deballasting operations would present a hazard to either marine resources or human health or cause harm to amenities or other legitimate uses of the sea and therefore justify the application of special anti-pollution measures..

NOXIOUS LIQUID SUBSTANCE IN BULK. Category C – noxious liquid substances if discharged into the sea from tank cleaning or deballasting operations would present a minor hazard to either marine resources or human health or cause minor harm to amenities or other legitimate uses of the sea and therefore require special operational conditions..

NOXIOUS LIQUID SUBSTANCE IN BULK. CATEGORY D- noxious liquid substances which is charged into the sea from tank cleaning or de-ballasting operations would present a recognizable hazard to either resources or human health or cause minimal harm to amenities or other legitimate uses of the sea and therefore require some attention in operational conditions..

All bulk cargoes are divided into four categories..

categorization And Listing of Noxious Liquid Substances.

The provision in annex II regulation 13 allow the discharges into the sea of residues of substances in category X , Y or Z , provided;.

CONSTRUCTION REQUIREMENT. SHIP ARRANGEMENT - For the purpose of insuring to carry out effective survey to ship throughout their operational life, provision of suitable means of access for inspection is to be considered at he ship design stage and in construction.

DEDICATED CLEAN BALLAST TANK. The dedicated clean ballast tanks shall have sufficient capacity to enable the tanker to meet the requirements of Regulation 13 ( 2) of Annex 1 of MARPOL 73/78. The selection of the dedicated ballast tank must be such that the hull stresses in the ballast and loaded conditions are to the satisfaction of the administration..

CLEAN BALLAST TANK OPERATION PROCEDURE .. Prior to arrival at the loading port. The pumping and piping designated for clean ballast operation shall be properly cleaned to permit the discharge of clean ballast in the loading port. Clean ballast shall be discharged until sufficient quantity remains for safe berthing and for flushing lines if necessary..

Ballasting and De-ballasting.

Prevention of Marine Pollution by NLS in Bulk. The following are principles underlying the protection of the marine environment against discharge of NLS . Reducing residues after unloading to acceptable small quantities. Ensuring effective mixing with seawater when such residue quantities are discharged into the sea..

Discharge of noxious liquid substances. Regulation 5 : Discharge of noxious liquid substances. The discharge into the sea of substances in category A as defined in regulation 3 ( 1 ) of this annex or of those provisionally assessed as such or ballast water, tank washing or other residues or mixture containing such substances shall be prohibited..

Category A, B and C substances within Special Areas.

SPECIAL AREAS. Means a sea area where for recognized technical reasons in relation to it’s oceanographic and ecological condition and to the particular character of it’s traffic the adoption of special mandatory methods for the prevention of sea pollution by noxious liquid substance is required. Special areas shall be: The Baltic Sea , The Black Sea , The Antarctic Sea ..

Pumping, piping and unloading arrangements. Every ship constructed on or after July 1 st 1986 shall be provided with pumping and piping arrangements to ensure, through testing under favorable pumping condition. That each tank designated for the carriage of a Category B substances does not retain a quantity of residue in excess of 0.1 cubic meter in the tank associated piping and immediate vicinity of the tank’s suction point..

Efficient Stripping. Although by now the concept of efficient stripping is known to all involved with chemical tanker, it must be realized that neither the annex II of MARPOL 73/78 nor the standards for procedures and Arrangements, developed as a consequences of annex II make mention of it..

Mandatory Prewash Operation. The mandatory prewash concept means that the tanks from which Category B and C substances, tanks which have not been efficiently stripped, must be washed in a prescribed way in the unloading port. Cargo tanks which Category A substances have been unloaded must be washed and tanks washing must be discharged to the shore until the residue concentration in the effluent has been reduced to a specific value..

Ventilation Procedure. Cargo maybe vented to remove cargo residues, if such procedure is not prohibited by a local rules. Procedures and arrangements for ventilation must be approved by the administration, which follows the P&A Standards as a guide and set out on the ships P & A manual..

Category A substance in all areas. With respect to Category A substances the following provisions shall apply in all areas. A tank that has been unloaded shall be washed in accordance with the requirements of this regulation before the ship leaves the port of unloading..

Category B and C substances outside Special Areas.

Category D substances in all areas. With respect to Category D substances, a tank that has been unloaded shall either be washed and the resulting tank washing shall be discharged to a reception facility, or the remaining residues in the tank shall be diluted and discharged into the sea..

Cargo record book for ships carrying NLS in Bulk.

Regulation 9 of annex II to MARPOL 73 states that the Cargo Record Book must be completed, on a tank-to-tank basis, whenever any of the following operations are carried out:.

Regulation 9 of annex II to MARPOL 73/78 states that the Cargo Record Book must be completed, on a tank-to-tank basis, whenever any of the following operations are carried out:.

Cargo record book. Every ship engaged in the carriage of noxious liquid substances in bulk is issued with a C argo R ecord Book, to record on a tank-to-tank basis, the following operations; Loading of cargo Internal transfer of cargo Unloading of cargo Cleaning of cargo tanks Ballasting of cargo tanks Discharge of ballast water to cargo tank Disposal of residues to the reception facilities..

NOXIOUS LIQUID SUBSTANCE IN BULK. Categories according to the hazard they present to marine resources, human health or amenities. The annex also listed “other liquid substances” deemed to fall outside Categories A, B, C or D and therefore representing no harm when discharged into the sea from tank cleaning or ballasting operation..

Items To be Recorder in Cargo Record Book. All ships that carry noxious liquid substance in bulk required to have a cargo record book under Annex 2 as either part of the official log book or otherwise . Records should be promptly entered after successful completion of activities as defined in MARPOL Annex II. This record book should be kept in a place that is easily accessible for review and inspections. The cargo record book must be in the working language of the ship with each new entry signed by the duty officer. Ships carrying noxious liquid substance in bulk should enter / fill the following records in their cargo record book:.

Equipment and Installations usually found on ship handling NLS..

The revised annex includes new four- category system..

Annex II Regulations for the control of pollution by Noxious Liquid Substances in Bulk.

Categories of Noxious Liquid Substances (NLS). Noxious liquid chemicals are divided into four categories X,Y,Z and other substances (OS) such that substances in category X pose the greatest threat to the marine environment and those in category other substances (OS) the least.

IBC CODE. MARPOL Annex II- Regulations for the control of pollution by noxious liquid substances in Bulk . Both conventions require chemical tankers built after 1 July 1986 to comply with the international code for the construction and equipment of ships carrying dangerous chemicals in bulk (IBC Code ).

With reference to MARPOL Annex II, What is IBC Code.

Operational Discharge of Residues of NLS. Annex II regulation 13 contains control of discharges of residues of noxious liquid substances. The maximum permitted residue in the tank and its associated piping left after discharge is set at a maximum of 75 litres for products in categories X,Y and Z.

Operational Discharge of Residues of NLS. Most chemicals or noxious liquids will mix with water and are not easily separated from it. The main principle of Annex II is to dilute cargo residues in seawater to prescribed limits depending on their pollution hazard and facilitate the distribution of discharges by utilizing the wake of the ship..

The discharge of residues requirements of Annex II.

Procedure and Arrangement (P&A) Manual. State that each ship which is certified for the carriage of noxious liquid substances in bulk should be provided with a procedures and arrangements manual. Every ship certified to carry NLS of category X,Y or Z in bulk, has on board an approved manual in standard format..

State the benefits of P&A Manual. P&A Manual provides master with guidance on ship’s arrangements and equipment to enable compliance with MARPOL Annex II.

Shipboard marine pollution emergency plan for NLS ( SMPEP).

State the main purpose of emergency plan. The primary objectives of this plan are to ; Prevent pollution Stop or minimize outflow when a damaged to the ship or its requirements occurs Stop or minimize outflow when a operational spill occurs in excess of the quantity or instantaneous rate permitted under the MARPOL convention..

Main content of emergency plan. The emergency plan provides guidance to the master and crew of the ship with steps to be taken when NLS spill has happened or likely to happen, and it consist of at least: The procedure to report a noxious liquid substances pollution incident; The list of authorities or persons to be contacted in the event of Noxious liquid substances pollution incident.