Cargo Stowage and Lashing Deficiencies and Cargo Insurance

Handling of Improper Stowage, Insufficient Lashing and Cargo Insurance

Improper stowage, insufficient lashing, and cargo insurance refer to the practical issues in insurance and liability treatment when cargo shifts, falls over, drops, contacts, suffers pressure damage, breaks, is lost, or collapses during transport due to inadequate stowage, support, load distribution, securing, fastening, blocking, bracing, or packing.

In maritime transport, land transport, and multimodal transport, the cargo is subjected to continuous or sudden external forces caused by vessel rolling, waves, wind pressure, vibration, acceleration and deceleration, turning, cargo handling operations, and container handling.

Therefore, stowage and lashing appropriate to the cargo’s weight, dimensions, shape, center of gravity, contact surfaces, fixation points, packaging structure, stowage location, and transport route are required.

Marine cargo insurance does not determine coverage solely based on the outcome of cargo movement or damage.

The applicable ICC(A), ICC(B), or ICC(C), the timing of the incident, external accidents, rough weather, stowage condition, packaging condition, party responsible for the operation, attachment of insurance, container suitability, individual policy terms, and the causal relationship with the damage should be confirmed.

It is especially important in container stowage not to confuse the packaging and preparation defect exclusion under ICC 2009 Clause 4.3 with the container or transport equipment unsuitability exclusion under Clause 5.1.2.

Scope Covered in This Article

Item	Content Covered in This Article	Content Covered in Sister or Separate Articles
Poor Stowage	Organizes deficiencies related to loading position, weight distribution, center of gravity control, support methods, cargo spacing, and load dispersion.	Overall vessel stowage planning, stability, and hull strength calculations are treated as specialized fields in ship operation or maritime safety.
Poor Lashing	Organizes deficiencies related to securing methods such as chains, wires, belts, turnbuckles, twistlocks, and other fastening methods.	Detailed strength calculations, Sea Fastening design, and structural approvals are determined by specialized engineers or Marine Warranty Surveyors.
ICC 2009 Clause 4.3	Organizes application requirements related to insufficient or improper packing or preparation, including stowage inside containers.	General packing deficiencies, nature of cargo, and differentiation from ordinary transport accidents are also covered in dedicated packing deficiency articles.
ICC 2009 Clause 5.1.2	Organizes exemption requirements when containers or transport equipment are unsuitable for safe transportation.	Detailed treatment of vessel unseaworthiness and unsuitability under Clause 5.1.1 are covered in separate articles.
Warranty	Organizes confirmation methods when stowage, packing, lashing, or surveys are specified as Warranty or special conditions.	Comprehensive explanations of UK Marine Insurance Act and Insurance Act 2015 are handled in dedicated articles.
ICC(A), ICC(B), and ICC(C)	Organizes the sequence for verifying covered risks and exemptions or special conditions.	Full texts and insurance periods of each Institute Cargo Clause are covered in individual ICC articles.
Deck Cargo	Organizes the relationship between deck cargo stowage, lashing, Sea Fastening, and damage from rough weather.	Differences between normal container ship stowage and dedicated deck cargo stowage are discussed in the deck cargo article.
Stakeholder Liabilities	Organizes the involvement of cargo owners, manufacturers, packers, vanning contractors, stevedores, carriers, NVOCCs, and freight forwarders.	Final legal responsibility is determined individually based on contracts, governing laws, negligence, causation, liability limits, and evidence.
Evidence Preservation	Organizes cargo information, stowage diagrams, photos, lashing records, rough weather logs, and survey materials.	Details on sample collection, joint surveys, and Chain of Custody procedures are handled in dedicated evidence preservation articles.

Difference Between Improper Stowage and Inadequate Lashing

Category	Main Meaning	Typical Defects	Main Consequences
Improper Stowage	Defects related to where, in what orientation, and how the cargo is arranged and supported.	Poor weight distribution, insufficient center of gravity control, inadequate support, improper stacking, insufficient spacing, load concentration	Shifting, tipping, compression damage, contact damage, floor damage, container deformation
Inadequate Lashing	Defects in securing the cargo to prevent movement, tipping, or falling.	Insufficient number of lashings, inadequate tension, poor fixing points, insufficient material strength, improper tightening	Cargo movement, tipping, falling, loss overboard, contact with other cargo
Blocking Defects	Defects in measures to prevent horizontal cargo movement using wood, metal fittings, or other components.	Gaps, insufficient support materials, broken components, insufficient fixing to floor surface	Movement forward, backward, or sideways; collisions; cargo collapse
Bracing Defects	Defects in measures supporting cargo using struts, braces, or reinforcing members.	Wrong reinforcement direction, insufficient material strength, poor joints	Tilting, tipping, platform damage, packaging failure
Sea Fastening Defects	Design or construction defects in structurally securing large or heavy cargo to the vessel’s deck or similar areas.	Insufficient welding, weak fixing points, inadequate load calculations, poor construction	Cargo movement, platform destruction, deck damage, loss overboard

In actual incidents, improper stowage, inadequate lashing, inadequate packing, and lack of cargo information may coexist.

Therefore, the cause of an incident is not immediately assigned to a single category; instead, design, materials, construction, information provision, supervision, and external factors are separately examined.

Cargo Prone to Problems

Cargo	Main Loading and Securing Issues	Information to Confirm in Advance	Likely Required Measures
Large Machinery and Plant Equipment	High weight, eccentric center of gravity, protruding parts, limited securing points	Weight, center of gravity, lifting points, securing points, drawings	Frames, load distribution, Sea Fastening, specialized survey
Long Cargo, Pipes, Steel Frames	Bending, sliding, bundle collapse, protruding ends	Length, weight, bundle composition, support intervals	Supports, chocks, bundle securing, end protection
Construction Machinery and Special Vehicles	Wheel movement, hydraulic parts, swivel parts, center of gravity shift	Vehicle weight, axle load, securing points, movable parts	Wheel chocks, chain securing, locking movable parts
Wooden Crated Cargo and Precision Equipment	Internal securing insufficient, vibration, shock, unclear center of gravity	Internal structure, securing method, shock tolerance	Internal blocking, cushioning material, tilt and shock control
Flat Rack Cargo	Protrusion beyond container dimensions, lashing, floor load	External dimensions, weight, center of gravity, securing points, shipping line conditions	Lashing plan, load distribution, prior approval
Open Top Cargo	Height excess, top securing, rainwater, covers	Height, top shape, securing method, waterproof conditions	Cross lashing, covers, waterproofing and drainage measures
Drums and Liquid Cargo	Rolling, sliding, liquid movement, leakage	Contents, filling ratio, weight, packaging specification	Pallet securing, chocks, gap fillers, leakage countermeasures
Bags and Slippery Cargo	Stack collapse, sliding, uneven load	Bag material, stacking limits, friction properties	Anti-slip material, unified packaging shape, bulkheads and supports
Deck Stowed Cargo	Wave action, wind pressure, seawater, ship movement, loss overboard	Ship type, route, stowage position, weight, projected area	Sea Fastening, waterproofing, anti-rust, Marine Warranty Survey

Basic Confirmation Sequence in Marine Cargo Insurance

When improper stowage or lashing is suspected, it is important to systematically review both the factual circumstances of the incident and the marine cargo insurance contract, rather than checking only the insurance terms first.

Confirmation Stage	Confirmation Details	Main Documents	Notes
Physical Damage	Is there movement, toppling, contact, breakage, falling, or loss of cargo?	Photographs, survey reports, inspection records	Distinguish between external damage and internal damage.
Timing of Incident	Did the damage occur before attachment of insurance, during the insured period, or after insurance ended?	Vanning records, handover records, transportation history	Do not confuse pre-existing damage prior to shipment.
External Incident	Were there external incidents such as rough weather, collisions, capsizing, emergency braking, dropping, or others?	Nautical logs, accident reports, vehicle records	The mere presence of external incidents does not necessarily determine the proximate cause.
Stowage and Securing Condition	Was the cargo weight, center of gravity, securing points, and transport environment appropriate?	Stowage diagrams, lashing plans, work photos	Do not infer pre-shipment conditions based only on post-incident status.
Work Responsibility	Who performed packing, vanning, stowing, lashing, or supervision?	Work contracts, instructions, work records	The responsible party is important under Clause 4.3 and Clause 5.1.2.
Insurance Terms	ICC clauses, individual clauses, warranties, survey conditions, and declared contents	Insurance policy, insurance details, attached clauses	Confirm not only the clause names but also the exact wording.
Liability Relationship	Responsibilities of the cargo owner, working parties, carrier, NVOCC, or freight forwarder	Contracts, B/L, quotation terms, emails	Separate the question of marine cargo insurance payment from compensation liability.

ICC 2009 Clause 4.3 and Container Loading

ICC 2009 Clause 4.3 is an exclusion that applies to damage resulting from insufficient or improper packing or preparation of the insured cargo to withstand normal insured transit.

Under Clause 4.3, the loading of cargo inside the container is considered part of "packing" to a certain extent.

However, the mere fact that the container loading was deficient does not automatically trigger Clause 4.3.

In practice, at minimum, the following conditions should be confirmed:

• Whether the damage was caused by insufficient or improper packing, preparation, or container loading
• Whether the packing, preparation, or loading was performed by the insured or their employees
• Or whether such work was performed before the attachment of insurance
• If the workers were independent contractors, whether they are treated as employees under Clause 4.3
• Whether the cargo was in a condition to endure normal insured transit

The wording of ICC 2009 excludes independent contractors from being considered employees under Clause 4.3.

Therefore, if container loading is carried out after the attachment of insurance by an independent external vanning company or warehouse operator, Clause 4.3 does not necessarily apply solely because the work was improper.

At the same time, the non-application of Clause 4.3 does not guarantee that the damage will be compensated.

The applicable ICC clauses, other exclusions, specific terms, cause of loss, insurance period, responsibility of the contractor, and involvement of the insured should be separately confirmed.

Responsible Party and Timing to Confirm under Clause 4.3

Operational Situation	Main Confirmation under Clause 4.3	Points of Caution	Main Documents
The insured personally performed vanning	If improper stowage caused the damage, the possibility of applying the exclusion should be confirmed.	Confirm who actually performed and who supervised the operation.	Work records, photos, employee records
An employee of the insured performed vanning	Confirm the relationship with the party requirements under Clause 4.3.	Confirm the actual employment and command relationship, not just nominal outsourcing.	Work instructions, employment records, photos
An external contractor performed vanning before attachment of insurance	Confirm the relationship with Clause 4.3 as work performed before attachment of cover.	Cross-check work completion time with the insurance attachment time.	Vanning records, insurance policy, delivery records
An independent contractor performed vanning after attachment of insurance	Since independent contractors are not employees, carefully confirm the applicability requirements of Clause 4.3.	Separately verify applicability of other exclusions or specific conditions.	Service contract, work time records, work reports
Timing of work or worker is unknown	Secure evidence to determine applicability of Clause 4.3.	Do not conclude that the work was done by the insured based on speculation alone.	CCTV, warehouse in/out records, invoices, emails

ICC 2009 Clause 5.1.2 and Unsuitability of Containers or Transport Equipment

ICC 2009 Clause 5.1.2 provides an exclusion for damages arising from the container or transport equipment being unsuitable for safely transporting the insured cargo.

This clause is not a general exemption covering all cases where cargo securing inside the container was insufficient.

The focus is on whether the container or transport equipment itself was in a condition appropriate for safe transport.

For example, the following conditions could be problematic:

• The container floor could not support the cargo weight
• Fixing rings or lashing points were damaged
• The container’s structure, dimensions, or type were unsuitable for the cargo in question
• The transport pallet or trailer was inappropriate for the safe transport of the cargo
• Doors, floor, sidewalls, or securing devices had serious defects

Under Clause 5.1.2, it is necessary to check whether the loading occurred before the attachment of insurance, or whether the insured or their employees conducted the loading and were aware of the unsuitability at that time.

Therefore, the mere fact that the container was found damaged after the incident does not mean it was unsuitable for safe transport from the time of loading.

Differences between Clause 4.3 and Clause 5.1.2

Item	Clause 4.3	Clause 5.1.2	Key Distinction
Main Subject	Insufficiency or mismatch in cargo packaging, preparation, or container stowage	Safety-related unsuitability of the container or transport equipment itself	Whether it is a preparation issue on the cargo side or a suitability issue on the transport equipment side
Typical Examples	Insufficient blocking, insufficient internal securing, inadequate load distribution	Insufficient floor strength, defective securing devices, inappropriate container type	Specific defect that caused the damage
Timing of Work	Confirms work performed by the insured or their employees, or work done before attachment of insurance	Confirms conditions such as loading done before attachment of insurance	Time of work completion versus attachment of insurance
Involvement of the Insured	Whether the insured or their employees performed the work	Confirms that the insured or their employees performed the loading and were aware of the unsuitability	Work actor, command relationship, and awareness
Independent Contractors	Not considered employees under Clause 4.3.	Contract wording, loading timing, and awareness conditions are individually checked.	Outsourcing contract and actual work relationship
Liability Relationships	Concerns may arise involving the cargo owner, packer, vanning company, etc.	Concerns may arise involving the container provider, carrier, cargo owner, loading party, etc.	Differentiates between insurance exclusion and indemnity liability

Warranty and Stowage / Lashing Conditions

For heavy cargo, oversized cargo, deck-stowed cargo, or special transport, stowage, packing, lashing, sea fastening, prior survey, or obtaining approval may be incorporated into the insurance contract as a Warranty or individual condition.

However, simply being labeled as a Warranty does not allow for a uniform legal interpretation of its effect.

At minimum, the following items should be confirmed:

• The exact wording that is actually attached
• Whether the condition functions as a Warranty, Condition Precedent, Exclusion, or Risk Definition
• The governing law of the insurance contract
• The party responsible for fulfilling the condition
• The deadline and method for fulfillment
• Whether violation can be remedied
• The period of violation and timing of loss occurrence
• The relationship between the violation and the loss suffered
• Whether the contractual terms modify the principles of the Insurance Act 2015

If English law applies and no valid contractual modification exists, under Insurance Act 2015 Section 10, a Warranty breach does not automatically extinguish the insurer's liability for future losses.

In principle, the insurer’s liability is suspended for losses occurring during the period from the breach until the breach is remedied.

If the breach is remedied and the contractual condition is satisfied again, liability may resume for losses occurring thereafter.

Additionally, for conditions intended to reduce risks related to the type, location, or timing of loss occurrence, the relationship with Insurance Act 2015 Section 11 should also be checked.

If the insured can demonstrate that the risk of loss actually did not increase due to the breach, the insurer may not rely on the breach of that condition.

Nonetheless, Section 11 does not apply to all contractual conditions, and conditions defining the overall insured risks are considered separately.

Moreover, for non-consumer insurance, contractual clauses meeting certain transparency requirements may modify the principles of the Insurance Act 2015.

Therefore, it is inappropriate to uniformly explain that "any Warranty breach automatically excludes all losses regardless of causation."

Items to Confirm via Warranty or Specific Conditions

Condition	Details to Confirm	Main Documents	Points of Caution
Loading Conditions	Loading position, support method, load distribution, cargo spacing	Stowage plan, work specifications, photographs	Cross-check with the actual work condition.
Lashing Conditions	Material, quantity, angle, tension, fixed points, retightening	Lashing plan, material specifications, work records	Confirm design and implementation separately.
Sea Fastening Conditions	Fixed structures, welding, strength calculations, approvals	Drawings, calculation reports, inspection records	Also check for any changes made after installation.
Survey Conditions	Pre-shipment inspection, certificate of approval, correction of findings	Survey Report, Certificate of Approval	Confirm whether uncorrected findings relate to the cause of the incident.
Packing and Protection Conditions	Wooden framing, pallets, waterproofing, rust prevention, internal securing	Packing specifications, material records, photographs	Confirm internal securing as well as external packaging.
Information Provision Conditions	Weight, center of gravity, fixed points, ship type, route declaration	Application forms, declaration documents, emails	Verify whether inaccurate information affected the design.

Order of Confirmation for ICC(A), ICC(B), and ICC(C)

In cases of defective stowage or lashing accidents, instead of judging solely by the general rule of "who bears the burden of proof," the order of verifying covered perils and exclusions should be organized according to the applicable conditions.

Insurance Terms	First Item to Confirm	Next Item to Confirm	Notes for Stowage and Lashing Accidents
ICC(A)	Whether accidental loss or damage to the cargo occurred during the insurance period	Exclusions under Clause 4.3, Clause 5, delay, inherent vice, individual conditions, etc.	Confirm not only the fact of cargo movement or damage but also who was responsible for packing/stowage and when it occurred.
ICC(B)	Whether the cause of damage corresponds to the enumerated covered perils	Exclusions under Clause 4.3, Clause 5, and individual conditions, etc.	Verify the causal relationship with specific covered perils, not just the expression of "stormy weather."
ICC(C)	Whether the cause of damage corresponds to the limited enumerated perils	Exclusions under Clause 4.3, Clause 5, and individual conditions, etc.	Normal ship motion-induced cargo movement does not necessarily qualify as a covered peril.
Individual Special Conditions	Official wording related to stowage, lashing, deck stowage, or survey	Fulfillment of conditions, governing law, timing of accident, and relationship to damage	Check the entire insurance policy, not just the ICC terms.

Distinguishing Between Maritime Perils and Deficiencies in Stowage or Lashing

Category	External Force / Accident	Stowage / Lashing Condition	Insurance Confirmation	Main References
Cases Mainly Involving External Accidents	Severe weather, collision, grounding, capsizing, or other sudden accidents	Reasonable stowage, securing, and protection have been carried out	Confirm applicable ICC insured perils, proximate cause, and special conditions.	Nautical records, accident reports, stowage plans, lashing records
Cases Mainly Involving Stowage Deficiencies	Expected levels of rolling, vibration, or acceleration/deceleration	Inappropriate weight distribution, support, center of gravity management, or loading position	Confirm Clause 4.3, operational responsibilities, and special conditions.	Work photos, stowage plans, weight and center of gravity data
Cases Mainly Involving Lashing Deficiencies	Normal transport external forces or relatively minor rolling	Insufficient number of lashings, tension, securing points, or material strength	Check design, execution, inspection, and insurance conditions.	Lashing plans, material specifications, broken materials
Cases With Mixed Causes	Presence of severe weather or sudden external force	Questions regarding stowage or lashing are also present	Comprehensively confirm contribution of external accidents and deficiencies, proximate cause, and contract conditions.	Severe weather records, expert opinions, survey reports
Cases Lacking Evidence	Degree of severe weather or accident circumstances unclear	No pre-loading photos or lashing records available	Carefully organize based on remaining evidence, statements of involved parties, and reference data of similar cargo.	CCTV, emails, invoices, vessel records

The fact that severe weather occurred is separate from the fact that stowage or lashing was appropriate.

Also, the fact that there was a deficiency in lashing must be separately verified from the determination that such deficiency was the actual cause of the damage.

Relationship with Container Loading and Vanning

Deficiencies in loading and lashing can occur not only with deck stowage or oversized cargo but also with regular container cargo.

Inside the container, it is necessary to prevent cargo movement in all directions—front, back, left, right, and vertical—properly distribute floor load, and avoid contact between cargo pieces or between the cargo and container walls.

For heavy cargo in particular, attention should be paid not only to the container's maximum gross weight but also to concentrated floor loads, forklift operations, the capacity of fixing rings, and load shifts toward the door side.

Inspection Item	Typical Deficiencies	Accident Consequences	Main Documentation
Load Distribution	Weight concentrated on a narrow contact area	Floor collapse, floor deformation, cargo tilting	Weight data, contact dimensions, floor surface photos
Fore-and-Aft Securing	Large gaps near door side or front wall side	Cargo movement during sudden braking, door damage	Vanning photos, blocking records
Lateral Securing	Insufficient side support or lashing	Toppling or contact due to ship roll	Photos inside container, lashing plan
Vertical Securing	Poor stacking, insufficient anti-floating measures	Bouncing, collapse of upper-level cargo	Loading diagrams, packing specifications
Weight and Center of Gravity Information	Accurate information not provided to operators	Improper placement, incorrect securing method selection	Cargo details, drawings, emails
Container Suitability	Inappropriate floor, securing points, or container type	Container damage, inability to secure cargo	EIR, container photos, inspection records

Relation to On-Deck Cargo

On-deck cargo is directly exposed to waves, wind pressure, seawater, rain, salt, and ship movement, making stowage and lashing particularly important.

However, sealed containers loaded on the deck at the carrier’s discretion on a typical container ship should be distinguished from large individual cargo loaded on the deck of conventional or heavy-lift vessels.

For individually on-deck loaded cargo, the following points should be confirmed:

• Insurance declaration indicating on-deck loading
• On Deck Cargo Clause or specific conditions for individual on-deck loading
• Applicable ICC
• Loading position, route, season, and ship type
• Cargo weight, center of gravity, and area exposed to wind pressure
• Design of lashing and sea fastening
• Waterproofing, anti-rust measures, and drainage countermeasures
• Pre-shipment survey or Marine Warranty Survey

In case cargo is lost overboard, it is necessary to distinguish washing overboard, lashing failure, jettison, and general average sacrifices.

Potentially Responsible Parties

Party	Main Role	Key Issues for Liability Assessment	Main Documents
Cargo Owner / Manufacturer	Providing weight, dimensions, center of gravity, lashing points, lifting points, and handling conditions	Whether lack or error of critical information hindered proper design	Drawings, specifications, cargo details, instructions
Packing Contractor	Wooden boxes, pallets, supports, internal securing, waterproofing, and rust prevention	Whether packing and preparation were sufficient for standard insured transport	Packing specifications, material records, work photos
Vanning Contractor / Warehouse Operator	Container stowage, load distribution, blocking, and bracing	Compliance with work instructions, cargo information, and professional duty of care	Vanning photos, work records, stowage diagrams
Stevedoring Contractor	Loading onto vessel or transport equipment, arrangement, and unloading	Adherence to stevedoring methods, stowage positions, cargo handling, and vessel instructions	Stevedoring records, crane logs, photographs
Lashing Contractor	Execution of lashing and sea fastening	Compliance with materials, workmanship, tension, securing points, and design	Work records, component specifications, construction photos
Designer / Surveyor	Lashing design, strength verification, pre-shipment inspection, and approval	Assumption data, calculations, comments, and scope of approval	Calculation sheets, Survey Report, approval certificates
Shipping Line / Carrier	Stowage management onboard, voyage operation, and transport contract management	Carrier liability, seaworthiness, stowage, weather response, and limitation of liability	B/L, stowage diagrams, voyage records, vessel reports
NVOCC / Freight Forwarder	Transport arrangement, communication of terms, coordination of contractors, and explanation to the cargo owner	Scope of mandate, information transmission, contractor selection, insurance guidance, and incident response	Quotations, bookings, emails, work instructions

Standard Five Classifications of Freight Forwarder Involvement Scope

The five classifications used in this article are not established by law or industry-wide consensus. They are an analytical framework used in this series to clarify the scope of freight forwarder involvement.

Standard Five Classifications	Main Involvement in Stowage and Lashing Operations	Focus of Responsibility Judgment	Main Documents
Simple Intermediary	Acts as intermediary for the cargo owner to the packer, vanning contractor, shipping line, or surveyor.	Whether engagement went beyond simple intermediary to include design, fitness judgment, or supervisory roles	Referral records, emails, quotation terms
Cargo Transportation Service Provider	Provides cargo transportation services involving stowage or lashing.	Contracted segment, arrangement of labor contractors, communication of conditions, and obligations under transport contract	Transport contract, booking confirmations, work instructions
NVOCC / House B/L Issuer	Assumes responsibility for international transport as the House B/L issuer.	Liabilities, exemptions, limits of liability, and notification deadlines under House B/L	House B/L, Master B/L, transport conditions
Door-to-Door Single Contractor	Undertakes integrated services including collection, packing, vanning, international transport, devanning, and delivery.	Scope of integrated contract, subcontract management, and communication between processes	Comprehensive quotation, specifications, subcontracting records
Agent/Coordinator for Specific Operations	Coordinates lashing design, work arrangements, survey, or approval acquisition.	Delegated confirmation items, coordination scope, and final decision maker	Delegation records, confirmation requests, survey records

Contracting Carrier and Actual Carrier are concepts that indicate legal or contractual statuses and do not replace the Standard Five Classifications used in this article.

Actual operations such as packing, storage, inspection, stowage, vanning, devanning, and container inspection do not themselves constitute a sixth classification.

Example 1: Insufficient Securing Inside the Container Before Attachment of Insurance

Assume that machinery is loaded into a container at the cargo owner's factory for export, secured by blocking with wood and lashing with belts inside the container.

Subsequently, marine cargo insurance attaches, and during ocean transport, the machinery shifts due to normal vessel motion and collides with the container walls, causing damage.

An investigation reveals that the blocking materials were insufficient for the cargo weight and that lashing points were not properly used.

In this case, it should be confirmed whether the container loading is included under packing in Clause 4.3, whether the work was completed before the attachment of insurance, and whether the insufficient securing was the cause of the damage.

At the same time, the responsibilities of the cargo owner, packer, or workers, as well as cargo information and work instructions, should be reviewed.

For insufficient packing inside the container occurring before attachment of insurance, the timing of the work under Clause 4.3 and causality are the main considerations.

Example 2: When an Independent Contractor Performs Vanning after Attachment of Insurance

After marine cargo insurance has commenced, assume that an external independent warehouse operator loaded wooden crate cargo into a container and carried out blocking and lashing.

During transit, the wooden crates shifted and came into contact with other cargo, resulting in damage to both.

In this case, it is confirmed that the operator is an independent contractor, not an employee of the insured, and that the work occurred after the attachment of insurance.

Under ICC 2009 Clause 4.3, independent contractors are not included in “employees,” so the mere fact of improper stowage does not automatically trigger Clause 4.3.

However, the applicable ICC, other exclusions, specific policy conditions, and cause of the incident should be reviewed, and potential subrogation against the warehouse operator or vanning contractor should be separately considered.

The possibility that Clause 4.3 does not apply is a different matter from the possibility that the contractor may bear liability for compensation.

Specific Example 3: Loading Despite Recognizing an Unsuitable Container

When loading heavy cargo, the insured's employee noticed significant damage to the container floor and broken securing rings but proceeded with loading as is.

During transportation, the floor deformed, causing the cargo to tilt and sustain damage.

In this case, it is necessary to verify not only a simple lashing deficiency but whether the container or transport equipment was unsuitable for safe carriage.

Furthermore, it should be confirmed whether the insured or their employee performed the loading, whether they recognized the unsuitability during loading, and whether the other requirements of Clause 5.1.2 are met.

Whether the container provider or carrier was aware of the defect and whether they could have provided a replacement container also become points of consideration in assessing responsibility.

Clause 5.1.2 emphasizes that not only the unsuitability of the container but also the timing of loading, the responsible party, and their awareness are crucial.

Common Practical Issues

Case	Main Focus	Key Reference Documents	Initial Response
Machinery moved inside the container due to normal vessel motion	Clause 4.3, blocking, lashing, center of gravity information	Vanning photos, weight data, loading plan	Confirm the operator and timing of the operation.
Large cargo toppled during rough weather	Severity of rough weather, sea fastening, proximate cause	Voyage records, design drawings, lashing records	Investigate rough weather conditions and cargo securing simultaneously.
Container floor damaged by heavy cargo	Load distribution, Clause 5.1.2, weight declaration	Floor photos, weight data, EIR	Check container condition prior to loading.
Securing ring broke	Defect in ring, excessive load, usage method	Broken components, material specifications, operation photos	Preserve broken components without disposal.
Flat rack cargo tilted	Center of gravity, floor load, lashing angle	Loading plans, shipping line approval, photos	Compare design conditions with actual operation.
Precision equipment moved inside wooden crate	Internal packing, internal securing, Clause 4.3	Packing specifications, unpacking photos, manufacturer data	Check outer crate and internal securing separately.
Cargo owner provided an incorrect center-of-gravity location	Responsibility for information provision, design assumptions, causality	Drawings, emails, lashing calculations	Confirm who used which information.
Shipment proceeded without correcting survey findings	Warranty, approval conditions, accident causes	Survey reports, correction records, insurance policy	Check relation between uncorrected items and damages.

Judgment Checklist for Freight Forwarder Practice

Checkpoint	Contact Party	Items to Confirm	Actions if Issues Are Found
Upon Acceptance	Cargo Owner, Exporter, Manufacturer	Weight, dimensions, center of gravity, securing points, lifting points, and fragile areas	If unclear, request drawings, specifications, and handling instructions.
During Packaging Design	Cargo Owner, Packaging Contractor	Internal securing, skids, support, waterproofing, rust prevention	Document packaging specifications and scope of responsibility.
At Vanning	Warehouse Operator, Vanning Contractor	Loading position, load distribution, blocking, bracing	Secure pre-shipment photos and work records.
At Lashing	Lashing Contractor, Stevedoring Operator	Materials, quantities, angles, tension, securing points	Check design drawings, material specifications, and construction photos.
Container Inspection	Shipping Line, Container Provider, Warehouse Operator	Floor, securing rings, walls, doors, and compatibility with cargo	If incompatible, exchange the container before loading.
Insurance Confirmation	Cargo Owner, Insurer, Insurance Agent	ICC Clauses, Clause 4.3, Clause 5, warranties, and survey conditions	Match official clauses with actual working conditions.
Shipping Arrangement	Shipping Line, NVOCC, Stevedoring Operator	Stowage position, deck stowage, shipping line conditions, and approvals	Record special conditions in the booking and work instructions.
In Case of Incident	Cargo Owner, Insurer, Carrier, Surveyor	Cargo movement, overturning, breakage, rough weather, and external accidents	Preserve photos and materials before altering the condition.
Cause Investigation	Surveyor, Designer, Work Contractor	Design, materials, construction, information provision, and external forces	Consider joint surveys and expert investigations.
At Subrogation	Insurer, Relevant Parties, Maritime Lawyer	Responsible party, liability limits, notification deadlines, and evidence	Manage marine cargo insurance claims and subrogation separately.

Documents Important as Evidence

Document Category	Main Documents	Purpose of Verification	Precautions
Insurance-related Documents	Insurance Policy, Insurance Detail, ICC, Warranty, Special Clauses	To verify coverage, exclusions, attachment of insurance, and specific conditions.	Confirm the exact wording as well as the clause names.
Cargo Information	Weight, Dimensions, Center of Gravity, Fixing Points, Slinging Positions, Drawings	To confirm whether the assumptions for work design were accurate.	Secure revision history and transmission records.
Packing Documents	Packing Specification, Material Specification, Internal Securing Photos	To confirm if the cargo was in a condition to withstand normal transportation.	Record the condition before and after unpacking.
Load Planning Documents	Load Plans, Vanning Photos, Load Distribution Data	To verify cargo arrangement, support, and gaps.	Secure photos taken at the completion of the work.
Lashing Documents	Lashing Plan, Material Specifications, Installation Records	To confirm the compliance of design and installation.	Retain broken materials.
Container Documents	Equipment Interchange Receipt (EIR), Container Number, Photos before Loading, Inspection Records	To verify container suitability before loading.	Differ between post-accident damages and preexisting defects.
Transport and Voyage Documents	Logbook, Rough Weather Records, Vehicle Records, Accident Reports	To verify the extent of external accidents and external forces.	Differ general weather data from ship-specific records.
Survey Documents	Pre-shipment Survey, Damage Survey, Approval Certificates	To confirm compliance with conditions, cause of damage, and responsibility areas.	Check noted issues and corrective status.
Contract and Communication Documents	Quotation, Booking, B/L, Work Instructions, Emails	To verify scope of engagement, instructions, and information transmission.	Prioritize records created before the incident.
Notification and Claim Documents	Accident Notifications, Claim Notices, Responses, Deadline Management Sheets	To preserve the right to claim and notification deadlines.	Manage accident notifications and formal claims separately.

Items to Confirm with the Insurance Company or Insurance Agent

• The applicable ICC (A), ICC (B), or ICC (C) clauses
• Conditions for applying ICC 2009 Clause 4.3
• Conditions for applying ICC 2009 Clause 5.1.2
• Attachment of insurance and the timing of packing, vanning, and loading
• Classification of the insured party, employees, or independent contractors
• Specific conditions related to stowage, lashing, packing, or sea fastening
• Official wording of warranties, condition precedents, or exclusions
• Whether there are contractual provisions modifying the principles of the Insurance Act 2015
• Requirement for pre-shipment surveys or marine warranty surveys
• Correction and approval procedures for survey findings
• Necessary documentation when storm damage, external accidents, and stowage deficiencies coexist
• Deadlines for notice of claim, pre-approval before disposal, survey, and formal claim submission

Items to Be Arranged in Advance Contract with the Cargo Owner

• Responsibility for providing cargo weight, dimensions, center of gravity, securing points, and lifting positions
• Obligation to notify in case of errors or changes in cargo information
• Division of responsibility for packaging design, internal securing, and skid/forklift base
• Division of responsibility for vanning, stowage, blocking, and bracing
• Creator of the lashing plan and Sea Fastening design
• Party directing the shipping line, warehouse operator, and cargo handling companies
• Party responsible for confirming container or transport equipment suitability
• Matters to declare to the insurance company and the party responsible for declarations
• Party responsible for pre-shipment survey and obtaining approvals
• Party responsible for obtaining work photos, stowage diagrams, and lashing records
• Procedures for incident notification, surveys, and evidence preservation
• Obligation to cooperate with claims by the shipping line and service operators

Basic Flow of Accident Handling

1. Record the condition of cargo movement, tipping, dropping, contact, damage, or loss with photographs.
2. Preserve the current state of the cargo, packaging, container, lashing materials, and securing points.
3. Notify the insurance company, insurance agent, carrier, and related parties of the accident.
4. Arrange for a joint survey if necessary.
5. Verify cargo weight, dimensions, center of gravity, securing points, and handling information.
6. Confirm the personnel responsible for packaging, vanning, stowage, and lashing.
7. Cross-check the timing of each operation with the attachment of insurance.
8. Review stowage plans, work photographs, lashing plans, and material specifications.
9. Check the condition of the container or transport equipment prior to loading.
10. Confirm external accidents such as rough weather, collision, capsizing, or emergency braking.
11. Confirm the applicable ICC and Clause 4.3, Clause 5.1.2, and any specific conditions.
12. If a breach of warranty is suspected, verify the governing law, period of breach, corrective actions, and relationship to damage.
13. Separate claims under marine cargo insurance from compensation claims against carriers, handling agents, or freight forwarders.
14. Manage notification deadlines, formal claim deadlines, statutes of limitation, and filing deadlines.
15. If the damage amount or liability is significant, consult maritime lawyers and technical experts.

Situations to Consult a Maritime Lawyer

• When the responsible party or timing of work under Clause 4.3 is disputed
• When it is contested whether an independent contractor qualifies as an employee under Clause 4.3
• When container non-conformity or recognition requirements under Clause 5.1.2 are disputed
• When the legal effect of a Warranty or specific conditions is contested
• When contractual modifications based on the Insurance Act 2015 are at issue
• When it is disputed whether adverse weather or improper stowage is the proximate cause
• When responsibility for stowage design, lashing design, or sea fastening is contested
• When making significant claims for indemnity against carriers, warehouse operators, stevedores, or lashing contractors
• When large compensation claims are made by the cargo owner against a freight forwarder or NVOCC
• When notification deadlines, formal claim deadlines, statutes of limitation, or filing deadlines are imminent

Common Misunderstandings

Misunderstanding	Actual Understanding	What Should Be Checked
If there is any defect in container stowage, Clause 4.3 always excludes coverage.	Check the party responsible for the work, timing of the work, cause of damage, and formal Clause requirements.	Confirm who performed the work, when it was done, and whether the defect caused the damage.
Vanning by an external contractor is treated the same as work by the insured’s employees.	Under ICC 2009 Clause 4.3, independent contractors are not included in employees.	Confirm the contractual relationship, command and control, and timing of work.
Container stowage defects and container unsuitability are the same issue.	Clause 4.3 mainly addresses cargo packaging/preparation defects, whereas Clause 5.1.2 focuses on the unsuitability of the transport equipment.	Determine whether the specific defect relates to cargo securing or container structure.
If the container has a defect, coverage is always excluded under Clause 5.1.2.	Check the timing of loading, party responsible, recognition of the defect, and causal relationship.	Review pre-loading photos, EIR, and awareness of the work personnel.
In case of damage caused by severe weather, stowage and lashing do not matter.	Even with severe weather, it is necessary to confirm whether the securing was reasonable.	Cross-check weather records with lashing documentation.
If the cargo moves, it is the carrier’s responsibility.	The cause could be insufficient pre-shipment securing, lack of cargo information, or errors by the work operators.	Confirm the time of damage occurrence and who was responsible for the work.
If insurance is in place, lashing defects are naturally covered.	Judgment depends on the applicable ICC, exclusions, warranties, and special conditions.	Check the insurance policy and the cause of the incident.
If there is a warranty breach, all subsequent damage is permanently excluded from coverage.	Under UK law, this is generally treated as a suspension of responsibility only during the breach period.	Confirm the governing law, contractual amendments, timing of correction, and timing of the incident.
Even if the warranty breach is unrelated to the damage, coverage is always excluded.	Under Insurance Act 2015 Section 11, where applicable, the connection between the breach and actual loss risk may be relevant.	Review the purpose of the condition, the type of loss, and policy wording.
Lashing responsibility lies solely with the work operator.	Differentiate involvement of designers, information providers, instructing parties, installers, and approvers.	Confirm records of design, instructions, installation, and approval.
If the freight forwarder did not perform the work, they have no responsibility.	Responsibility may arise depending on condition communication, contractor selection, or comprehensive contracting scope.	Check the Standard Five Classifications and the actual scope of entrusted work.
Post-incident photos alone can determine stowage defects.	The stowage condition itself may have changed as a result of the incident.	Secure pre-shipment photos, stowage plans, and work records.

Practical Points

• Distinguish between improper stowage, improper lashing, inadequate packing, and container unsuitability.
• Under ICC 2009 Clause 4.3, container stowage may be considered part of packing.
• Clause 4.3 requires verification of the party responsible for the work, the timing of the work, and the causal relationship to the damage.
• Independent contractors are not included as employees under Clause 4.3.
• The inapplicability of Clause 4.3 does not necessarily mean that the damage will always be covered.
• Clause 5.1.2 addresses the unfitness of the container or transport equipment itself for safe carriage.
• Clause 5.1.2 requires confirmation of the timing of loading, the party responsible for the work, and awareness of the unsuitability.
• ICC(A) sequentially checks physical damage and exemptions, while ICC(B) and ICC(C) review enumerated perils and exemptions.
• Even when storms occur, it is necessary to confirm whether stowage and lashing were proper.
• The effect of a Warranty should be assessed based on governing law, the exact wording, the period of violation, and contractual modifications.
• Under English law, breach of Warranty is generally treated as suspension of liability during the violation period.
• After an incident, promptly secure pre-shipment photos, stowage plans, lashing records, and broken components.
• Separate the determination of marine cargo insurance indemnity from the liability of carriers, handling parties, and freight forwarders.

Summary

When dealing with improper stowage and lashing deficiencies and marine cargo insurance, it is necessary to distinguish whether cargo movement, tipping, falling, contact, damage, or loss was caused by external accidents, by the cargo’s packing, preparation, or stowage, or by the unsuitability of the container or transport equipment.

Under ICC 2009 Clause 4.3, the stowage of cargo inside a container is treated as packing in certain cases.

However, it is essential to confirm whether the operation was performed by the insured or their employees, or if it was carried out before the attachment of insurance.

Since independent contractors are not included in employees under Clause 4.3, if an external vanning contractor performed stowage after the attachment of insurance, the mere fact of improper stowage does not necessarily mean Clause 4.3 automatically applies.

On the other hand, Clause 5.1.2 provides an exemption where the container or transport equipment itself is unfit for safe carriage.

Clause 5.1.2 requires checking not only defects of the container but also the timing of loading, parties responsible for the operation, and awareness of unsuitability at the time of loading.

While Clause 4.3 focuses primarily on packing, preparation, and stowage on the cargo side, Clause 5.1.2 centers on the suitability of the transport equipment.

This separation also applies to ICC(A), ICC(B), and ICC(C); the insured risks and the provisions of Clause 4.3, Clause 5, and any special conditions should be examined distinctly.

The occurrence of severe weather alone does not automatically exclude improper stowage or lashing deficiencies.

The cause of damage should be analyzed comprehensively by considering the severity of weather, cargo weight, center of gravity, securing points, stowage position, lashing design, materials, workmanship, and the cargo’s condition prior to shipment.

If stowage, lashing, sea fastening, or survey are contractually required as warranties, the exact contractual wording, governing law, responsible party, breach period, rectification, and connection to damage must be verified.

If English law applies without effective contractual modifications, the Insurance Act 2015 generally treats warranty breaches as suspension of liability during the breach period.

In non-consumer insurance, statutory principles may be modified by contractual terms meeting certain transparency requirements, so a full review of the insurance policy is necessary.

Freight forwarders or NVOCCs must accurately communicate weight, center of gravity, securing points, and handling conditions received from the cargo owner to the relevant parties, arranging operators, confirming conditions, and preserving evidence according to the actual scope of their engagement.

After an incident, it is critical to separate and clarify marine cargo insurance claims, carrier liability, responsibilities of packing, vanning, cargo handling, and lashing operators, and freight forwarder indemnity based on contracts and evidence, without confusion.