ISO 24146-1:2024

International
Standard
ISO 24146-1
First edition
Ships and marine technology —
2024-05
Shipboard waste on inland
navigation vessels —
Part 1:
On board management and
handling
Navires et technologie marine — Déchets à bord des bateaux de
navigation intérieure —
Partie 1: Gestion et manutention à bord
Reference number
© ISO 2024
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Published in Switzerland
ii
Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
3.1 General terms .1
3.2 Terms relating to waste .3
4 Requirements . 6
4.1 General .6
4.2 Classification of waste .7
4.3 Collection and segregation of waste .8
4.3.1 General .8
4.3.2 On board collection containers .8
4.4 Storage .8
4.4.1 General .8
4.4.2 Storage containers .8
4.5 On board processing of waste .10
4.6 Offloading waste .11
5 Waste management .11
5.1 Waste management plans .11
5.2 Waste volume. 12
5.3 Waste management techniques . . 12
5.3.1 General . 12
5.3.2 Discharge into the waterways . 12
5.4 Facilities to offload waste . 12
5.5 Documentation . 12
5.6 Waste minimization . 13
5.7 Waste management audits .14
Annex A (informative) Examples of waste streams generated from vessels during operations .15
Annex B (informative) Example of a waste data sheet for use in waste auditing. 17
Annex C (informative) Example of a used-oil log .18
Annex D (informative) Examples of oil and garbage record books as prescribed by the MARPOL
Convention .20
Annex E (informative) Examples of unloading attestations.26
Annex F (informative) Examples of colour codes for waste categories.33
Bibliography .34

iii
Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards
bodies (ISO member bodies). The work of preparing International Standards is normally carried out through
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The procedures used to develop this document and those intended for its further maintenance are described
in the ISO/IEC Directives, Part 1. In particular, the different approval criteria needed for the different types
of ISO document should be noted. This document was drafted in accordance with the editorial rules of the
ISO/IEC Directives, Part 2 (see www.iso.org/directives).
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This document was prepared by Technical Committee ISO/TC 8, Ships and marine technology, Subcommittee
SC 2, Marine environment protection.
Any feedback or questions on this document should be directed to the user’s national standards body. A
complete listing of these bodies can be found at www.iso.org/members.html.

iv
Introduction
Disposal of waste from vessels is of increasing concern to all industry stakeholders, including ports,
governments, companies, vessels, and the environment. The management of shipboard waste for sea-going
vessels is extensively controlled by the International Convention for the Prevention of Pollution from Ships
[2]
(MARPOL 73/78) . Parties to the MARPOL Convention have implemented regional and national legislation
to regulate and enforce provisions for handling ships' waste and for providing adequate reception stations
at ports and terminals.
While the focus of public attention is mostly directed at the deep sea (“plastic soup”), inland navigation also
plays an important role. Inland waterways are environmentally and ecologically sensitive, especially with
respect to the various end uses of the water, including intermodal activities and inland water transport.
The permissible levels of discharge into inland waters of polluting substances are incorporated in legal
instruments which regulate the environment and ecology, relevant regional or subregional agreements, or
stipulated by local authorities. These levels can differ between countries, waterways, or river basins.
Additionally, discharges of wastes on inland waterways can be carried down streams and watersheds and
can end up in the ocean.
The system for handling waste which is generated on board inland vessels is rather complex, with
requirements varying from region to region. For example, there is a general provision for the separate
collection of different types of waste on board vessels, but depending on the river/river basin, the
requirements can be vastly different (e.g. rivers of international importance where harmonized rules apply
to the whole river, or rivers solely regulated at the national level and/or local level). Consequently, there is
no consistent method for handling waste generated on board all inland vessels.
By seeking as much compatibility as possible with existing waste separation schemes on shore, the
recognition of waste separation on board vessels can be stimulated.
NOTE Examples of international and regional provisions for the collection, storage and delivery of waste are the
Convention on the collection, deposit and reception of waste generated during navigation on the Rhine and other inland
[7] [8] [12]
waterways (CDNI) , the European Code for Inland Waterways (CEVNI) , the US Code of Federal Regulations , and
[11]
the Recommendations on the organization of the collection of waste from vessels operating on the Danube .
This document was developed based on ISO 21070 and provides for minimization, management and
segregation of waste generated on board inland vessels so that it can be managed on board and offloaded
efficiently to the reception stations located at inland ports and on waterways.
To obtain the most efficient management of waste and to reduce the time and resource burden in segregating
and handling waste on inland vessels and at inland ports, the concept of waste minimization has been
integrated into this document by incorporating the following basic principle: prevention before recycling
before energy recovery before disposal.

v
International Standard ISO 24146-1:2024(en)
Ships and marine technology — Shipboard waste on inland
navigation vessels —
Part 1:
On board management and handling
1 Scope
This document provides requirements on the management of waste generated during the operation of
inland navigation vessels, including handling, collection, separation, marking, treatment, and storage on
board of the vessel. It also describes the ship-to-shore interface and the delivery of waste from the vessel to
the reception station.
Small crafts or vessels can use this document to improve their waste management.
This document also provides information for segregating and managing waste that any reception station
worldwide can expect from inland navigation vessels and concentrates on:
— prevention/elimination/minimization of waste prior to sailing;
— minimization of waste at the source on the inland vessel;
— waste collection at the source;
— waste segregation on the inland vessel into defined categories that are recognized globally and fit into
any of the different waste categorization systems around the world;
— waste minimization once segregated;
— waste storage on board the vessel; and
— health and safety concerns surrounding the handling, storage, and offloading of waste.
2 Normative references
There are no normative references in this document.
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
ISO and IEC maintain terminology databases for use in standardization at the following addresses:
— ISO Online browsing platform: available at https:// www .iso .org/ obp
— IEC Electropedia: available at https:// www .electropedia .org/
3.1 General terms
3.1.1
competent authority
person or organization that has the legally delegated or invested authority, capacity, or power to perform a
designated function
3.1.2
discharge
release, however caused, from a vessel (3.1.9) including any escape, disposal, spilling, leaking, pumping,
emitting, or emptying
[SOURCE: MARPOL consolidated edition 2022, Article 2 (3)(a)]
3.1.3
hazardous waste
waste (3.1.10) which, due to its nature, physical, chemical or infectious properties, is potentially hazardous to
human health and/or the environment during use, handling, storage or transportation, including any material
which may require special handling, disposal or recycling techniques to eliminate or reduce the hazard
[SOURCE: ISO 21070:2017, 3.1.3]
3.1.4
inland vessel
inland navigation vessel
vessel (3.1.9) intended solely or mainly for navigation on inland waterways
[SOURCE: UNECE Glossary for IWT, 2022, definition I.I.01]
3.1.5
reception station
vessel (3.1.9), a floating establishment, or a facility on shore approved by the competent authorities (3.1.1) for
the collection of waste (3.1.10) generated on board
Note 1 to entry: Other local, national, regionals regulation may use other terms for reception stations as defined in
ISO 21070 such as “port reception facilities.”
[SOURCE: UNECE Glossary for IWT, 2022, definition VIII.R.01, modified]
3.1.6
recycling
activity of segregating and recovering components and materials for reprocessing
[SOURCE: ISO 21070:2017, 3.1.5]
3.1.7
reuse
activity of recovering components and materials for further use without reprocessing
[SOURCE: ISO 21070:2017, 3.1.6]
3.1.8
small craft
vessel (3.1.9) with a hull less than 20 m long without rudder or bowsprit, except vessels built or equipped to
tow, push or propel vessels other than small craft in side-by-side formation and excluding craft authorized
to carry more than 12 passengers, ferryboats and pushed barges
[SOURCE: UNECE Glossary for IWT, 2022, definition V.S.10, modified]
3.1.9
vessel
inland navigation vessel, seagoing vessel, or floating equipment
[SOURCE: CDNI, Article 1, g]
3.1.10
waste
substances or objects which are disposed of, or are intended to be disposed of, or are required to be disposed
of, by the provisions of national law
[SOURCE: Basel Convention, 1989, article 2, definition 1]
3.1.11
waterway
inland water open to navigation
Note 1 to entry: It includes rivers, canals, lakes or other stretches of water which by natural or man-made features are
suitable for navigation.
[SOURCE: CEVNI chapter 1, section IV, definition 12]
3.2 Terms relating to waste
3.2.1
bilge water
oily water from the engine room bilges, peak, cofferdams, double-hull spaces, or side compartments
[SOURCE: UNECE Glossary for IWT, 2022, definition VIII.B.01]
3.2.2
cargo residue
remnants of any cargo material which remain on the deck or in holds following loading or unloading,
including loading and unloading excess or spillage, whether in wet or dry conditions or entrained in wash
water (3.2.20) but does not include cargo dust remaining on the deck after sweeping, or dust on the external
surfaces of the ship
Note 1 to entry: This residue is not covered by other annexes to the MARPOL Convention.
Note 2 to entry: This also includes liquid cargo which cannot be pumped out of the cargo tanks or piping by means of
the stripping system.
[SOURCE: MARPOL, Annex V, reg 1.2]
3.2.3
cargo-related waste
waste (3.1.10) and wastewater generated on board the vessel (3.1.9) and deriving from the cargo
Note 1 to entry: Residual cargo (3.2.16) and handling residues (3.2.8) are not included in this category.
[SOURCE: UNECE Glossary for IWT, 2022, definition VIII.C.01]
3.2.4
contaminated rag
rag which has been saturated with any substance defined as potentially hazardous or harmful to human
health and/or the environment
3.2.5
domestic wastewater
wastewater from galleys, dining rooms, washing facilities and laundry facilities, and water containing
faecal matter
Note 1 to entry: Domestic wastewater includes both waste types “sewage” and “grey water”, according to the MARPOL
Convention.
[SOURCE: UNECE Glossary for IWT, 2022, definition VIII.D.01]

3.2.6
e-waste
electrical or electronic equipment, which is waste (3.1.10), including all components, sub-assemblies and
consumables which are part of the product at the time of discarding
[SOURCE: Article 3(a) of Directive 2002/96/EC]
3.2.7
garbage
food waste (3.1.10), household refuse (3.2.9) and operational waste (3.2.12), all plastics (3.2.14), cargo residue
(3.2.2), generated during the normal operation of the ship and liable to be disposed of continuously or
periodically except those substances which are defined or listed in other annexes to the MARPOL Convention
(i.e. excluding Annex V)
Note 1 to entry: Garbage does not include fresh fish and parts thereof generated as a result of fishing activities
undertaken during the voyage or as a result of aquaculture activities which involve the transport of fish including
shellfish for placement in the aquaculture facility and the transport of harvested fish including shellfish from such
facilities to shore for processing.
[SOURCE: MARPOL consolidated edition 2022, Annex V, reg.1.9]
3.2.8
handling residues
cargo which falls on the vessel (3.1.9) outside the hold during handling
[SOURCE: UNECE Glossary for IWT, 2022, definition VIII.H.01]
3.2.9
household refuse
domestic refuse
on board organic and inorganic household waste (3.1.10) and food remains generated from the operation
of the vessel (3.1.9), except for the components of oily and greasy waste (3.2.11), cargo-related waste (3.2.3),
residual cargo (3.2.16), handling residues (3.2.8), sludge (3.2.18), slops (3.2.17) and other special waste (3.2.13)
[SOURCE: UNECE Glossary for IWT, 2022, definition VIII.H.02, modified]
3.2.10
oily rag
rag that has been saturated with or contains oil
3.2.11
oily and greasy waste
used oils (3.2.19), bilge water (3.2.1) and other oily or greasy waste generated from the operation of the vessel
(3.1.9) such as waste grease collected from runoff from greasers, bearings and greasing facilities, and other
non-reusable grease, filters, oily rags (3.2.10), and receptacles and packaging for such waste
[SOURCE: UNECE Glossary for IWT, 2022, definition VIII.O.01, modified]
3.2.12
operational waste
solid waste (3.1.10) (including slurries) not covered by the annexes to the MARPOL Convention other than
Annex V, that are collected on board during normal maintenance or operations of a vessel (3.1.9), or used for
cargo stowage and handling
Note 1 to entry: Operational waste includes, but is not limited to, the following wastes associated with cargo storage
and handling: dunnage, shoring, pallets, lining, transit and packing materials, plywood, paper, cardboard, plastic
wrapping, and steel strapping.
Note 2 to entry: Operational waste also includes cleaning agents and additives contained in external wash water
(3.2.20).
Note 3 to entry: Operational waste does not include wastewater, bilge water (3.2.1), or other similar discharges (3.1.2)
essential to the operation of a vessel (3.1.9).

Note 4 to entry: Wooden material can be defined as quarantine waste in certain countries.
[SOURCE: MARPOL, Annex V, reg 1.12]
3.2.13
other special waste
waste (3.1.10) generated from the operation of the vessel (3.1.9) other than oily and greasy waste (3.2.11) and
other than domestic wastewater (3.2.5), household refuse (3.2.9), sludge (3.2.18), and slops (3.2.17)
[SOURCE: UNECE Glossary for IWT, 2022, definition VIII.O.02]
3.2.14
paper product
product made of paper
EXAMPLE Sheet of paper, box or envelope.
Note 1 to entry: Paper products can include a small amount of adhesives or binding materials.
3.2.15
plastic
solid material which contains as an essential ingredient one or more high molecular mass polymers, and
which is formed (shaped) during either the manufacture of the polymer or the fabrication into a finished
product by heat and/or pressure
Note 1 to entry: Plastics have material properties ranging from hard to brittle, to soft and elastic.
Note 2 to entry: For the purpose of this document, plastics include plastic in any form, including synthetic ropes,
synthetic fishing nets, plastic waste bags, adhesives and binding materials and incinerator ashes from plastic products.
[SOURCE: MARPOL Annex V, reg 1.13]
3.2.16
residual cargo
liquid cargo remaining in the cargo tank or cargo piping after unloading when a stripping system has not
been used, and dry cargo remaining in the holds after unloading before manual or mechanical sweepers or
suction facilities are used
Note 1 to entry: The stripping system is according to the European Agreement concerning the International Carriage
of Dangerous Goods by Inland Waterways.
[SOURCE: UNECE Glossary for IWT, 2022, definition VIII.R.02]
3.2.17
slops
mixture of cargo residue (3.2.2) with wash water (3.2.20), rust, or sludge (3.2.18) whether or not suitable
for pumping
[SOURCE: UNECE Glossary for IWT, 2022, definition VIII.S.01]
3.2.18
sludge
residue produced on board the vessel (3.1.9) by the operation of an on board sewage treatment plant
[SOURCE: UNECE Glossary for IWT, 2022, definition VIII.S.02, modified]
3.2.19
used oil
waste oil or other non-reusable oil from engines, gears and hydraulic or other equipment generated on board
Note 1 to entry: This may be lubricating oils or other oils generated on board.
[SOURCE: UNECE Glossary for IWT, 2022, definition VIII.U.02, modified]

3.2.20
wash water
water from the washing of swept or vacuumed holds or stripped cargo tanks; it also includes ballast water
or rainwater from these holds or cargo tanks
[SOURCE: CDNI, Article 5.01]
3.2.21
shipboard waste
waste (3.1.10) and sewage generated on board from the operation and maintenance of the vessel (3.1.9)
Note 1 to entry: This includes oily and greasy waste (3.2.11) and other waste (3.1.10) generated as a result of the
operation of the vessel.
[SOURCE: UNECE Glossary for IWT, 2022, definition VIII.W.02, modified]
3.2.22
waste management plan
written procedures for collecting, storing, processing, and disposing of waste (3.1.10) on board vessels (3.1.9)
[SOURCE: MARPOL Convention, Annex V]
4 Requirements
4.1 General
This clause specifies the minimum requirements for waste treatment or management on board, including
waste separation, marking, collecting, storing, and offloading to port reception stations.
While it is recognized that on board waste management should be standardized, it is noted that offloading
procedures depend on the ports and reception stations available.
The national, regional and local requirements of waste management can differ for types of vessels, as sea-
going vessels can also navigate on inland waterways. Some examples of such situations include where:
— local requirements are more stringent than the requirements of the MARPOL Convention;
— a competent authority introduces for inland waterways pollution control requirements which are more
stringent than those applicable to seagoing vessels in specific cases where it is justified due to the
ultimate use of the water (e.g. drinking water source);
— local requirements meet the requirements of the MARPOL Convention;
— local requirements are less stringent than requirements of the MARPOL Convention;
— local requirements are not established.
Both vessel owners and inland ports are more aware of the importance of well-organized and managed waste
collection and its benefits, especially with respect to health and safety on board vessels, the prevention of
pollution and the potential cost benefits for vessel owners and national or local governments.
The following should be considered in order to introduce and develop an efficient waste management system
based on prevention, including:
a) regular monitoring of water quality;
b) regular monitoring of port areas;
c) regular inspections to ensure that all local, regional, and national rules and regulations for the
prevention of pollution from vessels are complied with;
d) application of precautionary principles and preventative approach; and

e) application of advanced technologies and equipment to vessel waste disposal operations.
4.2 Classification of waste
The waste categories covered in this document are provided in Table 1.
NOTE For regional waste categories, relevant regulations can apply.
Table 1 — Categories and waste types
Type Regional waste category
Plastics Plastics are divided into
clean plastic (not contam-
inated with chemicals, oil
etc.) and non-clean plastic
Food waste (food leftover) Combustible garbage
Domestic waste Categorize depending on the
nature of the waste
Slops Sludge
Domestic wastewater Combustible garbage
Sludge Sludge/ fuel residue
Cargo residue (residual Categorize depending on the
cargo, handling residues) nature of the waste
Hazardous waste Categorize depending on the
nature of the waste
Other waste Categorize depending on the
nature of the waste
Glass (clear and coloured) Glass
Paper products In case of recyclable paper
products, categorize as “re-
cycling paper.”
In the case of non-recyclable
paper products, categorize
as “combustible garbage.”
Non-recyclable household -
refuse
Oily and greasy waste Combustible garbage
Wood Combustible garbage
Metal Non-combustible waste
In case of metal cans, catego-
rize according to the types
listed in this table.
E-waste E-waste
Waste that is contaminated by another category of waste shall be handled in accordance with the disposal
requirements that are applicable for the most hazardous component of waste.
If the classification of waste in Table 1 does not meet the requirements of local regulatory documents, the
types of waste can be grouped in such a way that the resulting groups of waste types meet the specified
requirements. It is presupposed that the reception of waste from the vessel and its subsequent processing
are carried out according to the requirements of local regulatory documents.
It is recommended that waste categories be colour coded to facilitate identification. Inexpensive and readily
available standard label software and a colour printer can be useful for creating labels/markings, as shown
in Table 1 and according to the colour scheme in Annex F, on board the vessel for collection and storage
container labelling. Coloured signage/labels may be affixed to appropriate portable containers such as
drums, boxing, or bagging for retention and storage on board. Furthermore, such a labelling scheme can

facilitate efficient segregation of waste by type/category, for further handling and recycling by reception
station.
Additional or supplemental labels may be affixed to those types of waste requiring special handling, such as
hazardous or harmful, quarantine, or medical wastes and incinerator ashes for vessels equipped with such
equipment, as appropriate.
4.3 Collection and segregation of waste
4.3.1 General
Waste shall be regularly collected on board in the areas where it is generated. At the point of collection, the
waste shall be appropriately segregated into types in accordance with Table 1. Mixing of hazardous and non-
hazardous waste from different categories shall be avoided as far as practicable, depending on types of waste.
The waste shall be transported to storage containers in a storage site on board the vessel appropriate for
the category (see Table 1), where it can be segregated further as necessary.
4.3.2 On board collection containers
Collection containers, waste baskets, cans or bags of suitable size, design, and number as appropriate for the
volume and category of waste anticipated, shall be available where waste is generated, as far as practicable.
The containers shall be stored in such a way as to facilitate the timely detection and repair of any leakage
of the contents. The collection containers shall also comply with the applicable safety requirements (such
as metal safety containers used for collection of oily rags or sealed/covered containers used for quarantine
wastes) and shall be easy to transport manually. For hygiene reasons, the containers shall be emptied
regularly. Collection containers shall be marked to clearly identify their use (see Table 1 for categories and
Annex F for colours) as appropriate. Bilge water shall be collected in the engine room bilge.
4.4 Storage
4.4.1 General
Waste shall be regularly collected on board in the areas where it is generated. At the point of collection,
the waste shall be appropriately segregated into types according to Table 1. Another type of grouping can
be provided by local regulatory documents. The waste shall be transported to a storage site on board the
vessel as appropriate for that category, where it may be segregated further, as necessary. Segregated waste
shall not include any parts of the cargo or cargo-related waste.
Collected waste shall be appropriately stored on board until it is disposed.
NOTE International, regional and/or national legislation can apply.
The capacity of the designated storage site(s) shall be commensurate with the number and size of storage
containers required to accommodate shipboard waste.
It is not permitted to introduce any waste or oil or grease dissolving or emulsifying cleaning agents into the
engine room bilges.
4.4.2 Storage containers
4.4.2.1 General
Storage container volumes shall be commensurate with the amounts and categories of waste (see Table 1)
anticipated based on factors such as vessel type, size, number of persons on board and sailing schedule.
Storage containers may either be built into the vessel or movable, and shall be marked to clearly identify
their use as appropriate. Examples of standardized marking/labelling and colours of storage containers by
waste category are provided in Table 1 and Annex F, respectively.

4.4.2.2 Movable waste containers
Movable waste containers shall be fit for use based on the storage site, vessel type, and waste category.
a) The containers shall be leak-proof where appropriate and equipped with a suitable cover. Containers
arranged on the deck shall be provided with securable covers.
b) The container shall be made of material that is suitable for and resistant to the contents of the waste
type to be stored.
c) The use of combustible materials may be restricted; the containers shall be made of non-combustible
material and resistant to oil and chemicals as appropriate to the material to be stored.
d) Manually handled containers shall be fit for use and easy to transport. Containers to be lifted manually
shall not exceed a volume of 50 l or, depending on the density of the waste, a total mass of 25 kg. Larger
containers shall be provided with rollers.
e) Containers provided with wheels and rollers shall be equipped with locking brakes or equivalent means
of securing against accidental movement. Containers to be moved mechanically shall be provided with
a safe means of transportation. They shall be designed so that they can be lifted safely and emptied by
tilting or opening the bottom to ensure a safe and quick emptying.
f) Mobile containers stored on the deck shall not be used for the collection of used oil.
4.4.2.3 Containers built into the vessel
Containers built into the vessel, such as tanks and silos, shall be compatible with the type of waste stored.
4.4.2.4 Dedicated waste storage sites
The waste containers as described in 4.4.2.2 and 4.4.2.3 shall be located in dedicated waste storage sites.
4.4.2.5 General requirements of waste storage sites
The locations for waste storage on board shall meet the following requirements.
a) Access to the site shall be free from obstructions, as far as practicable.
b) The transport route to manually land the garbage or other waste to shore shall be free from thresholds,
coamings, and other obstructions, as far as practicable.
c) A means for securing the storage containers and protection against roll or pitch shall be provided.
d) Storage sites, associated passageways, shafts and hatchways for vertical transports, and entrances shall
be adequately sized for easy use, handling, and transport of storage containers.
e) Relevant fire protection equipment shall be provided at the storage sites.
f) For internal sites, ventilation with a forced exhaust and natural supply with at least five complete air
exchanges per hour shall be provided.
g) A water connection shall be provided for wet cleaning.
h) Inside scuppers shall be provided with a strainer. Wash water and escaping liquids from inside spaces
shall be directed to an appropriate waste liquid system.
i) Separate storage sites or rooms shall be considered for hazardous material storage. These spaces shall
have drainage relevant to the material being stored and shall have an eyewash station for personnel in a
readily accessible location.
4.4.2.6 Additional requirements for waste storage sites
Waste with potentially hazardous characteristics, garbage, and other wastes shall be stored on board only
in suitable, appropriately sized containers. The containers shall be marked appropriately by a relevant
recognized colour and/or sign depicting the waste it contains (see Annex F for an example). The waste
storage site shall be equipped so as to minimize any potential hazards arising from the waste.
In addition to the basic outfitting detailed above, the waste storage site shall be equipped with the following:
a) suitable absorbent material for oil-containing waste or spillages of other liquid waste;
b) temporary storage in the event of broken containers, e.g. pans and barrels;
c) broom, shovel;
d) locks, locking strips, cargo netting or other suitable protection against sliding, tilting, leaking or falling
of stored waste;
e) first aid kit;
f) sorting and handling procedures;
g) machinery and operating instructions; and
h) adequate lighting.
The installed outfitting of a waste storage site shall depend on the categories of waste stored, and the
related hazards. Relevant criteria considered in selecting the outfitting shall be documented in the waste
management plan.
4.4.2.7 Additional requirements for waste storage sites on deck
The following are additional requirements for waste storage sites on deck:
a) the storage site(s) shall be sheltered from the weather as much as practicable;
b) the deck storage site(s) shall be permanently marked and be of sufficient size to accommodate the waste
containers;
c) the location of the waste storage site(s) shall be appropriately selected according to categories of waste
to be stored, and located so as not to interfere with normal vessel operations; and
d) means for securing outside containers against movement shall be provided.
4.4.2.8 Storage of liquid waste
Liquid waste in larger quantities shall be stored in special tanks, containers (intermediate bulk containers or
drums) or in slop or cargo tanks. Compatibility shall be considered, next to dangerous mixing of incompatible
substances, for recycling or reuse of liquid waste.
Intermediate bulk containers or storage drums shall be clearly marked.
4.5 On board processing of waste
Segregated garbage and or other waste to be offloaded to reception stations shall not be treated, changed, or
mixed in any manner that cross-contaminates and increases environmental damage and makes it impossible
to recycle by shore facilities. Using equipment such as shredders, pulpers, and compactors to reduce the
volume and make handling of solid wastes more efficient, can nevertheless make shore-side recycling more
difficult, depending on the type of waste.
It is not permitted to burn waste on board. However, it is possible that the use of incinerators for household
refuse is allowed on certain waterway sections and according to local regulations. In this case, when a vessel

passes a waterway section where it is not allowed, these installations shall be sealed. If the waste can be
reused or recycled, the priority should be to not incinerate it.
4.6 Offloading waste
To ensure efficient offloading of wastes from vessels to reception stations, the following conditions shall be met.
a) Waste offloading operations shall be conducted in such a way that safe handling, movement of waste,
and emptying of waste containers is possible in any normal loading condition of the vessel.
b) Waste offloading operations shall be conducted in such a way that manual handling of waste containers
is minimised. Mechanical handling of waste containers is preferred. Equipment used for offloading
waste shall have access to the storage site. If this is not possible for design reasons, manual horizontal
transport greater than 10 m shall be avoided.
c) The procedures to offload waste shall consider the type and location of the reception station. They shall
also take into account the specific port procedures for notifying and arranging for services.
d) Waste offloading shall be performed at a reception station.
e) If the station is not attended by personnel, the segregated waste shall be disposed by the crew of the
vessel in the indicated and proper waste container.
f) If manned, and applicable, a waste receipt shall be obtained from the reception station noting the
disposed types of waste and quantities.
Wastewater collection tanks shall have sufficient capacity. Tanks shall be fitted with a device to indicate
their content level. There shall be on board pumps and pipes for emptying the wastewater collection tanks.
It shall be possible to pass wastewater from both sides of the vessel and from other vessels onwards.
5 Waste management
5.1 Waste management plans
It is recommended that vessels have a waste management plan in accordance with the requirements
applicable to the vessel. This document may also be used to develop a garbage (waste) management plan or
instructions for the crew on inland vessels.
The vessel shall be managed, arranged, and equipped with the necessary facilities and resources to
implement its waste management plan effectively. The waste management plan shall take into account:
a) an estimate of the waste volume,
b) the particulars of the voyage,
c) a review of potential waste management options,
d) the operation of the vessel,
e) the number of persons on board,
f) additional regulations and other relevant considerations, such as waste minimization (see 5.6).
The health and safety of passengers and crew, and protection of the environment shall be given priority
when developing procedures and designing, constructing, and sourcing equipment used for the management
of waste. Problems such as odours, liquid residue, unnecessary wastewater generation, health hazards and
hygiene issues shall be considered and should be avoided by corresponding design measures. The basis of
any decisions shall be appropriately documented in the waste management plan.

5.2 Waste volume
An estimate of the volume of waste shall be calculated using factors such as the number of persons on board,
anticipated length of voyage, the application of minimization technology, and the type of vessel operational
considerations. Examples can be found in Annex B. Estimated volumes should be updated as necessary.
5.3 Waste management techniques
5.3.1 General
Segregated waste shall be stored on board until a reception station is reached where it can be offloaded.
Vessels shall maximize the segregation of waste (see Table A.1) to facilitate efficient recycling at the
reception station. On board conditions such as space, waste amount, number of
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