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 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 name | Compounds | Threshold value |
|---|---|---|
| Asbestos | 0.1% 1 | |
| Ozone-depleting substances | Chlorofluorocarbons (CFCs) | No threshold value |
| Halons | No threshold value | |
| Other Fully Halogenated CFC | No threshold value | |
| Carbon Tetrachloride | No threshold value | |
| 1,1,1-Trichloroethane (Methyl Chloroform) | No threshold value | |
| Hydrochlorofluorocarbons 2 | No threshold value | |
| Hydrobromofluorocarbons | No threshold value | |
| Methyl Bromide | No threshold value | |
| Bromochloromethane | No threshold value | |
| Anti-fouling systems | Anti-fouling systems containing organotin compounds as a biocide | 2,500 mg total |
- 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.
- 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 name | Threshold value |
|---|---|
| Cadmium and cadmium compounds | 100 mg/kg |
| Hexavalent chromium and hexavalent chromium compounds | 1.000 mg/kg |
| Lead and lead compounds | 1.000 mg/kg |
| Mercury and mercury compounds | 1.000 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 substances | No threshold value |
| Certain short-chain chlorinated paraffin (Alkanes, C10-C13, chloro) | 1% |
While collecting hazardous material data, reference should be made to the followings:
- 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.
- 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.
- 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.
- 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.
- 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.
- 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
| Properties | Goods | Part_II | Part_III |
|---|---|---|---|
| Oiliness Liquid | Kerosene | x | |
| White spirit | x | ||
| Lubricating oil | x | ||
| Hydraulic oil | x | ||
| Anti-seize compounds | x | ||
| Fuel additive | x | ||
| Engine coolant additives | x | ||
| Antifreeze fluids | x | ||
| Boiler and feed water treatment and test re-agents | x | ||
| De-ioniser regenerating chemicals | x | ||
| Evaporator dosing and descaling acids | x | ||
| Paint stabilizers, rust stabilizers | x | ||
| Solvents thinners | x | ||
| Paints | x | ||
| Chemical refrigerants | x | ||
| Battery electrolyte | x | ||
| Alcohol, methylated spirits | x | ||
| Explosives / inflammables Gases | Acetylene | x | |
| Propane | x | ||
| Butane | x | ||
| Oxygen | x | ||
| Green House Gases | CO2 | x | |
| Perfluorocarbons (PFCs) | x | ||
| Methane | x | ||
| Hydrofluorocarbon (HFCs) | x | ||
| Nitrous oxide (N2O) | x | ||
| Sulfur hexafluoride (SF6) | x | ||
| Oiliness Liquid | Bunkers: fuel oil | x | |
| Grease | x | ||
| Waste oil (sludge) | x | ||
| Bilge and/or wastewater generated by the after-treatment systems fitted on machinery | x | ||
| Oily liquid cargo tank residues | x | ||
| Non-Oily | Ballast water | x | |
| Raw sewage | x | ||
| Treated sewage | x | ||
| Non-oily liquid cargo residues | x | ||
| Explosive/Inflammable Gases | Fuel gas | x | |
| Solid | Dry cargo residues | x | |
| Medical waste, infectious waste | x | ||
| Incinerator ash | x | ||
| Garbage | x | ||
| Fuel tank residues | x | ||
| Oily solid cargo tank residues | x | ||
| Oily or chemical contaminated rags | x | ||
| Batteries (incl. lead-acid batteries) | x | ||
| Pesticides, insecticide sprays | x | ||
| Extinguishers | x | ||
| Chemical cleaner (incl. electrical equipment cleaner, carbon remover) | x | ||
| Detergent, bleacher (could be a liquid) | x | ||
| Miscellaneous medicines | x | ||
| Fire fighting clothing and Personal protective equipment | x | ||
| Dry tank residues | x | ||
| Cargo residues | x | ||
| Spare which contain materials listed in Table A or B | x |
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
| Properties | Example |
|---|---|
| Electrical and electronic equipment | Computers, refrigerators, printers, scanners, television sets, radio sets, video cameras, video recorders, telephones, consumer batteries, fluorescent lamps, filament bulbs, lamps |
| Lighting equipment | Fluorescent lamps, filament bulbs, lamps |
| Non-ship-specific furniture, interior and similar equipment | Chairs, 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
| Version | Date | Editor | Revision History |
|---|---|---|---|
| 1.0 | 10 May 2021 | Christophe Guegan | Initial Commit |

