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IHM Manual

This manual provides the procedures and responsibilities for maintaining the Inventory of Hazardous Materials (IHM) on board yachts > 500GT.

Yacht Name M/Y --- Shipyard
Flag Port of Registry
Revision 1.3 Date of issue 02 Feb 2023
Gross Tonnage Date of Keel Laying
Company Yachting Concept Monaco Office Number +377 99 90 16 30
Director Thierry Roux
Designated Person Christophe Guegan 24/7 Phone +377 99 92 36 48
Company approval RO approval
Date Date
This manual applies only to yacht subject to IHM certificate

This plan has been developed for M/Y _________ and is valid until further revision.

This plan has been electronically signed and approved by the master and the Chief Engineer on DeepBlue© ISM procedures

1. Definitions

2. Purpose

The “Hong Kong International Convention for the Safe and Environmentally Sound Recycling of Ships, 2009” requires that a system be established to maintain an Inventory of Hazardous Material onboard every vessel > 500GT. A fundamental requirement of this regulation is the documentation of hazardous materials onboard ships, the so-called Inventory of Hazardous Materials (IHM).

This regulation is mandatory for every vessel > 500GT calling any port in Europe since the 31st December 2020, private and commercially operated. Following this requirement, Yachting Concept Monaco has developed this manual, assuming the master is responsible for the correct implementation on board. Yachting Concept Monaco has designated a DPA that is responsible for verifying the board compliance and will assist the master if requested.

This “management procedure to maintain the part I of IHM” is established to meet Regulation 5.3 of the Convention using properly maintaining, during the yacht’s operational stage, the part I of IHM developed according to the Convention and the Guidelines.

3. Management to Maintain the Inventory

Yachting Concept Monaco has established this manual and ensure that the Inventory onboard is properly updated and maintained. Yachting Concept Monaco designates the yacht’s chief engineer for maintaining and updating the Inventory for the yacht under the responsibility of the master.

A person who places an order of structure material, machinery and/or equipment to be installed onboard the yacht should identify the objects for the Inventory out of the orders, and request a repair yard or suppliers, of those objects for a completed and signed form « MD/SdoC » showing information of hazardous material which are contained in the objects.

The person who receives the deliveries to be on board the yacht should ensure that the information of hazardous material is properly collected for the delivered objects.

The DPA or a person assigned by the DPA should develop a revision system of the Inventory based on the information collected, where an object reviewed contains hazardous material. The DPA should confirm that the revision of the Inventory is properly filled and should instruct the shipmaster to update the IHM on DeepBlue© with this revision.

3.1 Scope of the Inventory

The Inventory consists of:

  • Part I: Materials contained in yacht structure or equipment;
  • Part II: Operationally generated wastes;
  • Part III: Stores

3.2 Materials to be listed in the Inventory

Those batteries containing lead acid or other hazardous materials that are fixed in place should be listed in part I of the Inventory. Batteries that are loosely fitted, which includes consumer batteries and batteries in stores, should be listed in part III of the Inventory.

4. Collection of Information of hazardous material

The items requiring to collect information of hazardous material shown in tables A and B below are structure material, machinery and equipment which are fixed (i.e., securely fitted with the yacht, such as by welding or with bolts, riveted or cemented, and used at their position, including electric cables, gaskets), and applied coating.

Collected MD/SDoC should contain the information required. Location on board and approximate quantity of hazardous material need to be shown in the Inventory, and, therefore, in the case where a product consists of plural components located in different places, its MD should be divided correspondingly to the locations of components containing hazardous material.

A newly delivered yacht that contains hazardous material excessing the threshold value shown in table A should not be installed onboard.

Table A: Materials listed in appendix 1 of the Convention

Material nameCompoundsThreshold value
Asbestos0.1% 1
Ozone-depleting substancesChlorofluorocarbons (CFCs)No threshold value
HalonsNo threshold value
Other Fully Halogenated CFCNo threshold value
Carbon TetrachlorideNo threshold value
1,1,1-Trichloroethane (Methyl Chloroform)No threshold value
Hydrochlorofluorocarbons 2No threshold value
HydrobromofluorocarbonsNo threshold value
Methyl BromideNo threshold value
BromochloromethaneNo threshold value
Anti-fouling systemsAnti-fouling systems containing organotin compounds as a biocide2,500 mg total
  1. If 1% is applied, this threshold value should be recorded in the Inventory and, if available, the Material Declaration and can be applied not later than five years after the entry into force of the Convention. The threshold value of 0.1% need not be retroactively applied to those Inventories and Material Declarations.
  2. New installations that contain ozone-depleting substances shall be prohibited on all ships, except those new installations containing hydrochlorofluorocarbons (HCFCs) are permitted until 1 January 2020.

Table B: Materials listed in appendix 2 of the Convention

Material nameThreshold value
Cadmium and cadmium compounds100 mg/kg
Hexavalent chromium and hexavalent chromium compounds1.000 mg/kg
Lead and lead compounds1.000 mg/kg
Mercury and mercury compounds1.000 mg/kg
Polybrominated biphenyl (PBBs)50 mg/kg
Polybrominated diphenyl ethers (PBDEs)1.000 mg/kg
Polychlorinated Naphthalene (more than 3 chlorine atoms)50 mg/kg
Radioactive substancesNo threshold value
Certain short-chain chlorinated paraffin (Alkanes, C10-C13, chloro)1%

While collecting hazardous material data, reference should be made to the followings:

  1. The items which are not fixed, such as portable fire extinguishers, distress flares, lifebuoys, etc., are not required to be listed in the part I of IHM.
  2. The batteries containing lead acid or other hazardous materials that are fixed in place should be listed in part I of IHM, but those not fixed, such as consumer batteries and batteries in the store are not required to be listed in part I.
  3. The items, potentially hazardous to the environment and human health at yacht recycle facilities, which are shown in Table C below are not required to be listed in the part I of IHM during yacht operation, while they are going to be listed in part II or III when recycling.
  4. Regular consumable goods, potentially containing hazardous materials, which are not integral to a yacht and are unlikely to be dismantled or treated at a yacht recycling facility, and which are shown in Table D of Appendix of the Guidelines, are not required to be listed in the part I of IHM, while they are going to be listed in part III when recycling.
  5. Materials listed in Table B that are inherent in solid metals or metal alloys, such as steels, aluminium, brasses, bronzes, plating and solders, provided they are used in general construction, such as hull, superstructure, pipes or housings for equipment and machinery, are not required to be listed in the Inventory.
  6. Although electrical and electronic equipment is required to be listed in the Inventory, the number of hazardous materials potentially contained in printed wiring boards (printed circuit boards) installed in the equipment does not need to be reported in the Inventory.

Even though the spare parts are not required to be listed in the Inventory, they should obtain MD/SDoC in advance, expecting that they are going to be fixed when it is in use. Further, when delivering a spare part containing hazardous material on board, the information should be given to the shipmaster, or a copy of MD should be attached to the spare part, for the shipmaster to take proper action when the spare part became fixed to the yacht.

Table C: Potentially hazardous items

PropertiesGoodsPart_IIPart_III
Oiliness LiquidKerosenex
White spiritx
Lubricating oilx
Hydraulic oilx
Anti-seize compoundsx
Fuel additivex
Engine coolant additivesx
Antifreeze fluidsx
Boiler and feed water treatment and test re-agentsx
De-ioniser regenerating chemicalsx
Evaporator dosing and descaling acidsx
Paint stabilizers, rust stabilizersx
Solvents thinnersx
Paintsx
Chemical refrigerantsx
Battery electrolytex
Alcohol, methylated spiritsx
Explosives / inflammables GasesAcetylenex
Propanex
Butanex
Oxygenx
Green House GasesCO2x
Perfluorocarbons (PFCs)x
Methanex
Hydrofluorocarbon (HFCs)x
Nitrous oxide (N2O)x
Sulfur hexafluoride (SF6)x
Oiliness LiquidBunkers: fuel oilx
Greasex
Waste oil (sludge)x
Bilge and/or wastewater generated by the after-treatment systems fitted on machineryx
Oily liquid cargo tank residuesx
Non-OilyBallast waterx
Raw sewagex
Treated sewagex
Non-oily liquid cargo residuesx
Explosive/Inflammable GasesFuel gasx
SolidDry cargo residuesx
Medical waste, infectious wastex
Incinerator ashx
Garbagex
Fuel tank residuesx
Oily solid cargo tank residuesx
Oily or chemical contaminated ragsx
Batteries (incl. lead-acid batteries)x
Pesticides, insecticide spraysx
Extinguishersx
Chemical cleaner (incl. electrical equipment cleaner, carbon remover)x
Detergent, bleacher (could be a liquid)x
Miscellaneous medicinesx
Fire fighting clothing and Personal protective equipmentx
Dry tank residuesx
Cargo residuesx
Spare which contain materials listed in Table A or Bx

These goods are to be entered in part II and III of the inventory only once a decision of recycling the yacht has been taken.

Table D: Consumable goods potentially containing hazardous materials

PropertiesExample
Electrical and electronic equipmentComputers, refrigerators, printers, scanners, television sets, radio sets, video cameras, video recorders, telephones, consumer batteries, fluorescent lamps, filament bulbs, lamps
Lighting equipmentFluorescent lamps, filament bulbs, lamps
Non-ship-specific furniture, interior and similar equipmentChairs, sofas, tables, beds, curtains, carpets, garbage bins, bed-linen, pillows, towels, mattresses, storage racks, decoration, bathroom installations, toys, not structurally relevant or integrated artwork

5. Update of the Inventory on Board

The master should confirm with the DPA that, for all the items to be delivered on board, revision of the Inventory is properly developed based on the investigation and the MD/SdoC’s. In a case where alteration, exchange or significant repair is made on the structure, equipment, system, fitting, location or material of yacht, DPA should instruct the shipmaster to undergo an additional survey if necessary and renew the supplement of Certificate to maintain the compliance with the Convention.

The DPA should confirm on the occasion of internal audit of the yacht that the Inventory on board is properly updated with revisions and is consistent with the current condition of hazardous material on board, further should confirm that the Inventory onboard coincides with its copy kept on DeepBlue©, and should make a record of the audit.

The chief engineer job description should be made very clear that the maintenance of the IHM is under the responsibility of the chief engineer and it should be part of the chief engineer handover, including the live document, the initial assessment and all the passwords needed to access and maintain the IHM live document.

Revision History

VersionDateEditorRevision History
1.010 May 2021Christophe GueganInitial Commit