Cargo in a Voyage Charterparty

Cargo in a Voyage Charterparty

The cargo clause is one of the central commercial provisions in a voyage charterparty. It identifies what the charterer must supply, what the owner must receive, the quantity that is to be shipped, the parts of the ship that may be used, and the risks that arise when the cargo is unsuitable, unlawful, dangerous, wrongly prepared, wrongly described, or carried on deck.

In a voyage charter, the owner normally earns freight by carrying the agreed cargo from the agreed loading place to the agreed discharging place. The charterer, in turn, obtains the commercial use of the ship for that voyage. The cargo clause therefore connects several important subjects: deadfreight, cargo capacity, stowage, laytime, demurrage, safe loading, lawful merchandise, deck carriage, dangerous cargo, Hague Rules questions, general average, and the owner’s right to reject cargo that does not fall within the contract.

Mutual Duties Before Cargo Is Loaded

Unless the charterparty provides otherwise, the basic bargain is reciprocal. The owner must bring the ship to the contractual loading place and make her available to receive the agreed cargo. The charterer must provide that cargo and load it in accordance with the charterparty. These obligations are closely connected, but they are not identical. A clause that excuses delay in loading does not necessarily excuse a complete failure to provide cargo.

The charterer’s duty to provide cargo is usually treated as an absolute and non-delegable duty. The charterer cannot ordinarily escape responsibility by saying that a seller, shipper, supplier, terminal, receiver, government agency, or another third party failed to deliver the goods in time. If the charterer has undertaken to ship cargo, the commercial risk of arranging that cargo normally remains with the charterer unless the charterparty clearly transfers or qualifies that risk.

This distinction is important in practice. If cargo is unavailable because a letter of credit has not been opened, a supplier has not prepared goods, an export licence has not been obtained, or cargo documents are incomplete, the charterer may be exposed to detention, demurrage, deadfreight, or damages depending on the terms of the charter and the stage reached in the loading operation.

The Meaning of a Full and Complete Cargo

A promise to load a full and complete cargo generally requires the charterer to load as much cargo as the ship can properly and lawfully carry. The obligation may be satisfied by using the ship’s deadweight capacity or by filling the ordinary cargo spaces by volume. In many dry bulk fixtures, the result depends on the physical nature of the cargo, the ship’s holds, draft limitations, stability requirements, and the way in which the cargo can be safely stowed.

Where a dense cargo reaches the ship’s permissible weight limit before the holds are filled, the cargo may still be full and complete. Where a light cargo fills the holds before the ship reaches her deadweight limit, the same may also be true. The law does not require the impossible. It requires the charterer to load the cargo required by the charter in the manner contemplated by the contract and by the ordinary practice of the trade.

The obligation can be altered by express wording. The charter may provide a fixed quantity, a minimum and maximum range, a margin in the owner’s option, a margin in the charterer’s option, a part cargo, or a cargo to be measured by cubic capacity, deadweight, draft, stowage factor, or another commercial formula. Those words must be read carefully because they may change the apparent simplicity of the phrase “full and complete cargo”.

Only Ordinary Cargo Spaces Are Available

The charterer is entitled to use the parts of the ship that are ordinarily available for cargo. The charterer is not, merely because a full cargo is promised, entitled to occupy crew accommodation, passenger spaces, stores spaces, engine-room spaces, or bunker spaces. Even broad phrases giving the charterer the “full reach and burthen” of the ship do not ordinarily deprive the owner of spaces required for the proper operation, safety, navigation, and management of the ship.

Bunker tanks are especially important. They are not cargo spaces merely because they occupy volume or affect deadweight. The owner is entitled to keep reasonable fuel, water, stores, and provisions on board for the voyage and for the safe operation of the ship. However, the owner must not unreasonably load excess bunkers or stores in a way that prejudices the charterer’s right to load the contractual cargo.

Ballast and the Ship’s Loading Condition

The owner must provide the ship in a condition that enables the charterer to load the agreed cargo safely. That includes carrying sufficient ballast when ballast is needed for stability, trim, or safe loading operations. The charterer is not normally obliged to provide ballast unless the charterparty says so.

In some circumstances, the owner may use other cargo as ballast if it occupies no more space than ordinary ballast would have occupied and does not interfere with the charterer’s rights. But the owner cannot use the need for ballast as an excuse to reduce the charterer’s contractual cargo entitlement beyond what is genuinely required for the ship’s safety and performance.

Stowage, Broken Stowage, and the Cargo Actually Tendered

Whether a full cargo has been loaded often depends on stowage. Cargo must be stowed according to the charterparty, the custom of the loading port where applicable, and sound cargo practice. If poor stowage causes cargo to be shut out, liability normally falls on the party responsible for stowage under the charterparty and applicable terms.

Broken stowage refers to unused space left between or around pieces of cargo because of the shape, size, or handling characteristics of the goods. Where the charterer chooses a type of cargo that naturally leaves gaps, and the charter wording permits other cargo to fill those gaps, the charterer may have to provide additional cargo suitable for broken stowage. This is especially relevant where the cargo description is broad, such as sugar or other lawful goods, and the charterer elects to ship a cargo whose shape leaves usable empty space.

Different considerations apply where the contract itself requires or clearly contemplates a cargo that inevitably leaves broken stowage. If the parties have fixed the ship for cargo of that kind, the charterer will not normally be expected to do more than provide a full cargo in the commercial sense contemplated by that particular trade.

Port custom may be decisive, provided it does not contradict the charterparty. If cargo is customarily prepared, packed, pressed, bundled, handled, or stowed in a particular way at the loading port, that custom may define whether the charterer has complied with the cargo obligation. However, mere inconvenience, low stevedoring skill, or a poor loading method will not excuse a party where the charter requires a fuller or better loading result.

Preparation, Packing, and Presentation of Cargo

The charterer must present cargo in the condition and form required for shipment. That may involve pressing, bundling, bagging, trimming, drying, cooling, marking, palletising, securing, or otherwise preparing the goods in accordance with the charter, port practice, and commercial expectations. If the charterer’s failure to prepare the cargo properly reduces the quantity that can be loaded, the charterer may be liable for deadfreight or other damages.

The owner must also allow the charterer a reasonable opportunity to prepare the cargo where preparation is part of the normal loading process. If the master refuses to wait for customary preparation that would have enabled the ship to receive a full cargo, the owner may be responsible for the resulting short shipment.

Packaging also matters. The Hague Rules and Hague-Visby Rules may protect a carrier from liability for damage caused by insufficiency of packing. That does not mean the master must always accept cargo that is obviously unsafe or improperly packed. If the likely consequences are serious, and if the cargo cannot be safely carried in the condition presented, the master may have grounds to refuse loading or require corrective steps.

Reasonable Stowage and Safe Carrying Limits

Many charterparties qualify the cargo obligation by words such as “not exceeding what she can reasonably stow and carry”. Such wording is not limited to the narrow question of whether loading more cargo would immediately endanger the ship. It can also include class requirements, stability information, draft restrictions, safe operating guidelines, load line rules, and other established limits that the parties may be taken to have contemplated.

If the ship’s classification rules, approved stability data, cargo manual, or safety requirements restrict the amount or distribution of cargo, the owner is not usually in breach for refusing to exceed those limits. The ship is not a floating warehouse to be filled at any cost. She must remain seaworthy, stable, lawful, and fit for the intended voyage.

Even without an express phrase of this kind, it would be difficult to argue that an owner breaches the full cargo obligation by refusing to load more than the ship can safely and lawfully carry. The commercial promise to carry cargo is always shaped by the more fundamental requirement that the ship must not be loaded into an unsafe or unlawful condition.

Bunkers, Water, Stores, and Their Effect on Cargo Intake

The owner may carry the fuel, water, lubricants, provisions, and stores reasonably needed for the voyage and for the safe operation of the ship. The owner may also be entitled, depending on the circumstances and trade custom, to carry enough fuel to reach a practical bunkering place after completing the charter voyage.

However, the owner cannot load unnecessary bunkers for a future employment and then reduce the charterer’s cargo intake or increase the ship’s draft to the charterer’s prejudice. If extra fuel is taken for the owner’s convenience and it causes cargo to be shut out, lightening expenses, loss, or delay, the owner may be liable.

The practical question is whether the fuel, water, and stores were reasonably required for the chartered voyage, the safety of the ship, and ordinary operational planning. Where the owner exceeds that reasonable requirement for a private commercial purpose, the charterer’s right to the ship’s cargo capacity may prevail.

Draft Restrictions, Bars, and Lightening

Draft restrictions at the loading or discharging place can affect how much cargo can be loaded or whether the ship can reach, leave, or work the port safely. The allocation of this risk depends on the charterparty as a whole. A safe port or safe berth warranty may place the risk on the charterer. A named port without a warranty may place much of the risk on the owner. A clause allowing the ship to proceed “so near thereto as she may safely get” may provide an alternative mode of performance.

Where a port has a bar or draft limitation, the ship may not have to enter beyond the bar if she cannot safely leave with the full contractual cargo. If the ship enters and loads only to a draft that allows departure, the charterer may have to provide the remaining cargo outside the bar, at the charterer’s expense, depending on the wording and circumstances.

In the absence of contrary agreement, the ship’s ability to load and sail should normally be judged by reference to the most favourable ordinary tide. The master may not prematurely leave cargo behind simply to avoid waiting for an ordinary tide if waiting is part of the expected operation of the port.

Ship Capacity Descriptions and the Cargo Obligation

A charterparty often describes the ship’s deadweight, grain capacity, bale capacity, hold dimensions, hatch dimensions, gear, draft, or other cargo-carrying particulars. Those descriptions may qualify the charterer’s cargo obligation. If the owner states a particular capacity, the charterer is normally entitled to rely on that description when arranging cargo.

Where the charter promises a full cargo and also states a cargo capacity, the two provisions must be read together. The owner may not be able to claim deadfreight beyond the capacity represented in the charter. Conversely, if the ship can carry more than the described amount and the charter gives the charterer an option whether to load more, the owner’s entitlement may be limited by the agreed wording.

If the capacity description is inaccurate and the charterer loads less cargo because the ship cannot provide the capacity represented, the charterer may have a defence to a deadfreight claim or may recover damages. The answer depends on whether the statement is treated as a contractual term, how the quantity clause is drafted, and whether the shortfall is commercially material.

Stowage Factor and Cargo Density

The stowage factor of cargo describes how much space a given quantity of cargo occupies. If the charterparty specifies a stowage factor, the charterer must provide cargo that substantially corresponds with that description unless the charter allows a margin. A materially different stowage factor may cause cargo to be shut out, holds to remain slack, or securing expenses to increase.

A dense cargo may exhaust deadweight before volume. A light cargo may exhaust volume before deadweight. A cargo with an unexpectedly low or high stowage factor may therefore disturb the commercial balance of the fixture. Where the charterer has warranted or described the stowage factor, the owner may recover deadfreight, extra securing costs, delay, or other provable losses caused by the discrepancy.

Fixed Cargo Quantities, Minimums, Maximums, and Margins

Some voyage charters move away from the general language of a full and complete cargo and fix a quantity. The cargo clause may provide for “about” a stated number of tons, a minimum quantity, a maximum quantity, or a range such as not less than one quantity and not more than another. These words are not mere decoration; they define the commercial quantity that must be lifted.

Where a full and complete cargo is coupled with a maximum quantity, the owner may generally require the ship to be filled up to that maximum if the ship can safely carry it. The maximum protects the charterer from being called upon to load more than the agreed ceiling; it does not necessarily give the charterer an option to load less.

Where a minimum quantity is stated, it may operate as an owner’s warranty that the ship can carry at least that amount. If the ship cannot do so, the owner may be exposed to a cargo-capacity claim. Where both minimum and maximum are used, careful drafting is needed to make clear whether one party has a true option or whether the parties have simply set the limits of a full cargo obligation.

The word “about” allows a commercially reasonable margin. The margin is not unlimited and will depend on the type of cargo, the size of the shipment, the language of the charter, and the commercial expectations of the trade. Where exactness is required, the party who wants exactness should avoid words of approximation. Where flexibility is intended, the charter should state clearly who may use the margin and when.

Quantity Options and Their Exercise

If the parties intend the owner or the charterer to have an option over the quantity to be loaded, the charter must say so clearly. A true option, once validly exercised, fixes the cargo quantity as though that quantity had been written into the charter from the beginning.

The option should be exercised within the time stated in the charter or, if no time is stated, within a reasonable time. In many fixtures, the master may be required to declare the cargo quantity on or before commencement of loading. A declaration made too late, too vaguely, or without contractual authority may not alter the charterer’s underlying obligation.

A declaration of expected intake is not always a true contractual option. Sometimes it is only an operational communication to help the charterer arrange cargo. The difference is important. A true option changes the contractual quantity. A mere estimate or intimation does not.

Charters for “A Cargo” and Part Cargoes

Where a charter calls simply for “a cargo” rather than a “full and complete cargo”, the result depends on construction. In some circumstances, “a cargo” may still mean an entire loading of the ship. In others, a quantity very close to the ship’s carrying capacity may be sufficient even if it is not mathematically full.

Where the parties intend a part cargo, the charter should say so expressly. A part-cargo fixture may allow the owner to load other cargo for the same voyage, subject to the charter terms, cargo compatibility, safe stowage, and any agreed route or deviation liberty. The owner cannot use the part-cargo arrangement to interfere with the charterer’s cargo or to depart from the agreed voyage beyond the liberty granted.

The De Minimis Principle

The law does not normally concern itself with trifling differences. A tiny shortfall in cargo quantity may be disregarded where it has no practical or commercial significance. This is the de minimis principle.

The rule must be applied cautiously. A small numerical difference is not automatically trivial. In some trades, a shortfall of a few tons may be commercially unimportant. In others, exact quantities may matter for sale contracts, documentary requirements, draft planning, freight calculation, or cargo allocation. The test is whether the departure is negligible in a commercial sense, not merely whether the percentage looks small.

Deck Cargo in a Voyage Charterparty

As a general rule, cargo should be carried below deck unless the contract, custom, ship design, or nature of the trade permits deck carriage. Deck cargo is more exposed to sea, weather, shifting, jettison, and handling risks. For that reason, deck carriage requires careful contractual wording and proper documentation.

The Gencon form contemplates that deck cargo may be agreed, but it does not itself grant an automatic general liberty to load deck cargo. If the parties intend deck cargo to be shipped, that intention should be stated clearly in the fixture and reflected in the Bill of Lading (B/L) where necessary.

When Deck Cargo Is Permitted

Deck cargo may be permissible where the charterparty or Bill of Lading (B/L) expressly allows cargo to be stowed on deck. The wording should identify whether deck carriage is optional or mandatory, whether it applies to all cargo or only specified cargo, who bears loading, lashing, securing, and extra costs, and what risk allocation is intended.

Deck carriage may also be allowed by a recognised custom of the trade. A mere practice of occasionally loading cargo on deck is not enough. The custom must be sufficiently established and recognised to form part of the contractual setting. If the supposed custom is simply that owners sometimes carry cargo on deck while accepting responsibility for any loss, that will not amount to a custom authorising deck carriage at the cargo interest’s risk.

A further category arises where the ship is specially designed or adapted for deck carriage. Container ships are the clearest modern example. The design, arrangement, lashing system, class approval, and commercial expectations of container trading may make deck carriage ordinary and contemplated. However, not all containers are the same. Open-top or open-sided units may raise different questions from fully enclosed containers, particularly where weather exposure or cargo vulnerability is material.

Unauthorised Deck Carriage

If the owner carries cargo on deck without contractual authority, custom, or shipper consent binding on the relevant cargo interest, the owner commits a breach of contract. Modern treatment does not always equate unauthorised deck carriage with a geographic deviation, but it remains a serious breach with potentially important consequences.

Whether exceptions, limitations, Hague Rules time bars, Hague-Visby Rules limits, or other protective provisions remain available depends on the construction of the contract and the applicable legal regime. The owner should not assume that ordinary protections will automatically apply where the cargo has been placed on deck without permission.

Authorised Deck Cargo and the Standard of Care

Where deck cargo is authorised, the owner must still exercise proper care in relation to the cargo and the ship. The fact that cargo is on deck does not give the owner a licence to load, lash, secure, or monitor it carelessly. The relevant standard is adjusted to the reality of deck carriage: the cargo is more exposed than underdeck cargo, but it must still be stowed and secured with reasonable care and skill for the voyage contemplated.

If damage occurs because the ship was unseaworthy, the lashing was defective, the stowage plan was unsafe, or the crew failed to take reasonable precautions, the owner may remain liable unless the contract contains clear and effective wording shifting that risk.

“At Charterer’s Risk” and “At Shipper’s Risk”

Deck cargo clauses often state that cargo is carried “at charterer’s risk” or “at shipper’s risk”. These phrases are not identical. “At charterer’s risk” normally regulates the allocation of risk between owner and charterer. “At shipper’s risk” may require the charterer to ensure that the Bills of Lading (B/L) contain corresponding wording protecting the carrier against the shipper or consignee.

The phrase “at risk” must be drafted with precision. General words may shift some risks but may not protect the owner from consequences of unseaworthiness, negligent stowage, negligent lashing, or negligence by persons for whom the owner remains responsible. If the intention is to exclude liability for loss or damage to deck cargo even where negligence is involved, the clause must say so in clear terms and must remain effective under the applicable law.

Even where deck cargo is carried at the charterer’s risk and expense, the risk transferred may relate only to loss of or damage to the deck cargo itself. It does not automatically make the charterer liable for all damage to the ship, all port-of-refuge costs, all voyage expenses, or every consequence of carrying deck cargo. If the charterer’s own negligent stowage or lashing causes ship damage, a separate claim may arise.

Deck Cargo, Hague Rules, and Hague-Visby Rules

The Hague Rules and Hague-Visby Rules may apply to deck cargo unless the contract clearly brings the cargo outside their operation. Under the Rules, cargo is excluded from the definition only where the contract of carriage states that it is carried on deck and it is in fact so carried. A mere liberty to carry on deck may be insufficient.

The relevant document will commonly be the Bill of Lading (B/L), not merely the charterparty. For that reason, if the parties intend deck cargo to be excluded from the Rules, the Bill of Lading (B/L) should state clearly that the cargo is carried on deck. Vague wording, inconsistent documents, or a liberty clause without a factual on-deck statement can create disputes over whether mandatory cargo liability rules continue to apply.

Deck Cargo and General Average

Deck cargo also raises general average issues. Under the York-Antwerp Rules, jettison of deck cargo may not be made good in general average unless the cargo was carried according to recognised trade custom. The rule reflects the historic concern that deck cargo is especially likely to be sacrificed when the ship is in danger.

The position is not always straightforward. Cargo interests who expressly consent to deck carriage may still be liable to contribute at common law in some circumstances. The exclusion for deck-cargo jettison does not necessarily apply to every type of sacrifice or expenditure. Deck cargo may itself still have to contribute to general average when other property has been sacrificed or expenses have been incurred for the common safety.

Freight for Deck Cargo

If the charter does not give the charterer a right to use deck space, but the charterer insists on loading cargo on deck and the owner accepts it, the owner may be entitled to a reasonable freight for that deck cargo. Where the charterparty rate does not cover the additional deck cargo, the owner may claim a reasonable market rate or, in some circumstances, account for sub-freight earned by the charterer.

The safer course is to state the freight treatment expressly. The parties should say whether deck cargo is included in the lump sum or freight rate, whether extra freight is payable, whether extra lashing or securing costs are for charterer’s account, and how any special survey or approval costs are allocated.

The Type of Cargo

The cargo description in the charterparty defines what the charterer may tender and what the owner must carry. The description may be specific, such as bagged sugar, crude oil, steel coils, coal, cement, grain, gypsum, project cargo, or clean petroleum products. It may also be general, such as lawful merchandise or lawful general cargo. The narrower the description, the less room there is for a cargo outside the stated commercial understanding.

Where the cargo is described specifically, the charterer must tender cargo of that description and in a reasonable condition for carriage under the charter. The owner is not required to accept goods that are commercially or physically different from what was fixed. At the same time, the owner cannot reject cargo merely because it presents ordinary characteristics of the cargo that the owner agreed to carry.

For example, where a charter permits crude oil, the owner may not be able to object to a crude oil product that the trade regards as commercially falling within that description. But if the cargo has special hazards, unusual handling requirements, or characteristics materially different from the ordinary cargo description, the charterer may have to disclose them and may be responsible if the cargo is outside the contractual description.

Lawful Merchandise

Where the charterparty permits lawful merchandise, the cargo must be lawful to load, carry, and discharge. The issue is not limited to the law of the loading port. The cargo must not place the ship in breach of relevant law, sanctions, port regulations, flag requirements, or rules applicable at the intended discharge place. A cargo may be physically ordinary but legally dangerous if it exposes the ship to detention, confiscation, delay, penalty, blacklisting, or refusal of entry.

“Merchandise” is broad. It may include goods customarily shipped from the loading port, and it is not limited to goods traded by private merchants in the narrowest sense. However, broad wording does not allow the charterer to tender cargo requiring extraordinary ship characteristics, unusual gear, special permits, or special handling that the owner had no reason to contemplate.

The charterer should not assume that “lawful generals” or “lawful merchandise” will cover any cargo that can physically fit into the ship. The cargo must be reasonable for the ship described, the loading and discharging arrangements, and the legal route contemplated by the fixture.

Unsuitable Cargo and the Owner’s Right to Refuse

If the cargo tendered does not comply with the charterparty description, the master may refuse to load it. A shipowner is not required to tolerate cargo that falls outside the contract, is illegal, is dangerous without adequate notice, or cannot be carried safely by the ship contracted for the voyage.

However, rejection must be handled carefully. A minor discrepancy may not justify termination. The charterer may still be able to provide substitute contractual cargo within the laytime or within a reasonable time, depending on the circumstances. If the owner rejects cargo too quickly or wrongly treats the charter as at an end, the owner may become the party in breach.

The practical approach is usually to protest promptly, identify the defect, reserve rights, and require the charterer to tender contractual cargo. If the breach is serious and cannot be cured without destroying the commercial purpose of the voyage, termination may be available. If the owner elects to continue, the charter terms, including freight, laytime, demurrage, exceptions, and limitations, may continue to govern the carriage.

Dangerous Cargo: Express Prohibitions

Some charterparties expressly prohibit dangerous cargo or list excluded cargoes such as acids, explosives, ammunition, corrosive substances, radioactive cargo, liquefying bulk cargo, or other high-risk goods. If the charterer tenders prohibited cargo, the charterer is in breach.

A list of particular prohibited cargoes followed by a general phrase such as “or other dangerous cargo” is not necessarily limited to cargoes similar to the listed examples. The ordinary meaning of dangerous cargo may apply. A cargo can be dangerous because it is explosive, flammable, corrosive, toxic, noxious, unstable, contaminating, liable to liquefy, liable to emit gas, liable to heat, or otherwise capable of causing personal injury, ship damage, cargo damage, or serious operational consequences.

The master’s knowledge or consent may not waive the owner’s contractual rights unless the master has authority to vary the charterparty or the owner clearly elects to accept the cargo on revised terms. A master may agree operationally to load cargo without thereby rewriting the charter.

The Implied Duty Not to Ship Dangerous Cargo Without Notice

Even where the charter does not expressly prohibit dangerous cargo, the law generally imposes a duty on the shipper or charterer not to ship dangerous goods without giving adequate notice of their dangerous characteristics. The purpose of the notice is practical: it allows the carrier to decide whether the cargo can be accepted and, if accepted, what precautions must be taken.

The duty is strict in important respects. The shipper or charterer may be liable even where the hazard was not appreciated, depending on the applicable law and circumstances. The central question is whether the cargo carried dangers that the owner did not know and could not reasonably be expected to know without proper warning.

Adequate notice must enable an ordinarily competent and experienced carrier to understand the nature of the risk and protect against it. The owner is not expected to conduct extraordinary scientific investigations in the ordinary course of business. But the owner may be expected to consult ordinary cargo manuals, IMO guidance, material safety data, industry publications, and known cargo-handling information for cargoes commonly carried in the trade.

What Makes Cargo Dangerous?

Dangerous cargo is not limited to cargo that is obviously explosive or flammable. It may include cargo that emits gas, generates heat, corrodes steel, contaminates tanks or holds, damages other cargo, creates toxic fumes, loses stability through liquefaction, causes severe cleaning requirements, or exposes the ship to detention or seizure. The issue is often one of degree.

A cargo is not dangerous merely because it requires ordinary cleaning after discharge. Ships are expected to clean holds or tanks after many cargoes. However, where a cargo causes contamination so serious that specialist cleaning, decontamination, or long loss of trading use becomes necessary, the cargo may move into the dangerous category depending on the facts.

Some cargoes are always known to carry particular hazards. Coal may emit methane; fishmeal may self-heat; wet sulphur may be corrosive; some concentrates may liquefy; some chemicals may react with moisture or heat. Where the cargo presents a hazard beyond the ordinary and known risks of that cargo type, special notice may be required.

Known Cargo Hazards and Special Warnings

If the owner has agreed to carry a cargo whose ordinary hazards are well known in the trade, the charterer may not need to warn of those ordinary hazards. For example, if the trade knows that a cargo is inherently flammable and standard precautions are understood, the owner is expected to apply those precautions.

But if the particular parcel has characteristics that create a risk different in kind, or so different in degree that it is commercially equivalent to a different kind of risk, the charterer should disclose that information. A general cargo name may be accurate yet insufficient if it conceals a special danger not normally associated with the cargo description.

The test is not whether the cargo name is technically correct in a laboratory sense. It is whether the information provided was commercially adequate for a competent carrier to understand the real carriage risk and take proper precautions.

Dangerous Cargo and Inherent Vice

A difficult distinction exists between dangerous cargo and cargo suffering from inherent vice. Inherent vice is a natural tendency of the goods to deteriorate, heat, spoil, ferment, rust, leak, or decay. It may provide a defence to a cargo claim, but it does not automatically mean the shipper has breached a duty to the carrier.

The distinction becomes important where the cargo’s condition threatens the ship, the crew, or other cargo. If grain is damp enough to heat and endanger the ship, if bulk cargo is moist enough to liquefy, or if goods are packaged in a way that creates a serious hazard, the issue may go beyond ordinary inherent vice. The cargo may be dangerous in the contractual sense, especially if the condition was not apparent to the owner and proper notice was not given.

The practical lesson is that parties should not rely on labels alone. Moisture content, temperature, chemical history, storage conditions, certificates, test results, cargo age, packaging, and carriage instructions may all be material. Where cargo has a potentially hazardous condition, the charterer should disclose it clearly before loading.

Legal and Political Risks Created by Cargo

Cargo may also be dangerous because it creates legal, regulatory, sanctions, customs, military, political, or port-state risk. Cargo that cannot lawfully be loaded, carried, imported, discharged, or delivered at the intended destination may expose the ship to detention, confiscation, delay, blacklisting, fines, or refusal of clearance.

This form of risk can arise even where the cargo is physically harmless. Examples include cargo subject to sanctions, cargo requiring special import permits, cargo prohibited at the discharge place, cargo misdeclared as to origin, cargo restricted by wartime controls, or cargo requiring documentation that has not been obtained. If the charterer knows or should know of these obstacles and the owner does not, the charterer may be liable for failing to warn or for tendering non-contractual cargo.

The description “lawful merchandise” should therefore be read commercially. The cargo must be lawful not merely at the loading place but for the performance contemplated by the charter. A cargo that will predictably trap the ship at the discharging place because legal permission cannot be obtained is not a proper cargo simply because it could be physically loaded.

Must the Owner Carry Dangerous Cargo After Notice?

The effect of notice depends on the charterparty. If dangerous cargo is expressly prohibited, the owner may reject it. If the cargo is described generally and special precautions would cause unreasonable delay, expense, or risk, the owner may also have grounds to refuse. If the cargo is specifically named in the charter and the risk is ordinary for that cargo, the owner may be bound to carry it with appropriate precautions.

The hardest cases involve specifically described cargo with unusual characteristics. One view is that if the unusual risk takes the cargo outside the commercial description, the owner may reject it. Another view is that, if proper notice is given and safe carriage is possible, the owner must carry the cargo because it still falls within the named description. The practical answer will depend on the seriousness of the hazard, the precision of the cargo description, the availability of precautions, the likely delay and cost, and the wider terms of the charterparty.

If safe carriage is impossible, the owner is not required to load merely because the cargo name appears in the charter. The obligation to carry cargo does not require the owner to sacrifice the safety of the ship, crew, and other property.

Clause Paramount and Dangerous Cargo

Where the charterparty incorporates a Clause Paramount, the Hague Rules or Hague-Visby Rules may affect the allocation of risk for dangerous cargo. Article IV rule 6 deals with goods of an inflammable, explosive, or dangerous nature and may give the carrier rights where dangerous goods are shipped without consent.

The Rules do not necessarily replace all common law obligations. They are primarily concerned with physical danger. They may not fully address legal or political risks created by cargo. They may also leave open questions where danger results partly from the cargo and partly from the carrier’s failure to exercise due diligence, properly stow, or properly care for the cargo.

Because these issues are technical, dangerous cargo clauses should be drafted expressly rather than left to implication. The charter should state prohibited cargoes, notification duties, documents and certificates required, testing standards, liability for delay, rights of refusal, rights to discharge or destroy dangerous cargo, and any indemnity in favour of the owner.

Bulk Cargoes That May Liquefy

Solid bulk cargoes that can liquefy deserve special attention. Cargoes such as nickel ore, iron ore fines, mineral concentrates, and similar materials may appear solid when loaded but lose shear strength during the voyage if moisture content exceeds safe limits. The resulting shift can endanger the ship very quickly.

For such cargoes, the charterer should provide accurate certificates, sampling results, transportable moisture limit information, cargo declarations, and loading instructions required by the applicable code and charter terms. The owner and master must review the documentation and remain alert to visible signs of unsafe cargo condition, including free moisture, splatter, flow, or inconsistent sampling.

A clause dealing specifically with cargoes liable to liquefy is often preferable to relying on general dangerous cargo wording. The clause should allocate responsibility for sampling, testing, documentation, refusal, delay, survey costs, and consequences of false or unreliable certificates.

Rights of the Owner When Cargo Breaches the Charter

When the charterer loads or tenders cargo in breach of the charterparty, the owner may have several possible rights. The owner may refuse to load the cargo, require proper cargo, claim damages, claim deadfreight, claim detention, or, if the breach is serious enough, terminate the charterparty. The precise remedy depends on the nature and gravity of the breach.

If the owner terminates because dangerous cargo has been loaded or because the breach goes to the root of the contract, the owner may claim reasonable remuneration for carriage already performed and damages for further loss. If the owner affirms the charter and continues the voyage, the owner usually remains bound by the charter terms, including any freight, demurrage, exception, or limitation provisions that apply.

As an alternative, where the charterer knowingly loads cargo outside the contractual description and the owner accepts it, the law may imply a separate obligation to pay reasonable freight for that non-contractual cargo. This is particularly relevant where the cargo loaded commands a higher freight than the cargo described in the charter. The principle may not apply where both parties genuinely believed that the cargo complied with the charter.

Deadfreight, Detention, and Damages

Deadfreight is the owner’s claim for freight lost because the charterer failed to provide the cargo quantity required by the charter. It often arises where the charterer supplies too little cargo, cargo with the wrong stowage factor, cargo not matching the description, or cargo that cannot be loaded because of the charterer’s failure to prepare or present it properly.

Detention may arise where the ship is delayed outside the laytime and demurrage regime or where the charterer’s breach causes delay before laytime starts. Demurrage may govern delay once laytime has been exhausted, but not every cargo-related delay falls neatly into the demurrage code. The contract must be read carefully to determine whether the owner’s claim is deadfreight, demurrage, detention, damages at large, or a combination of these.

Damages are not automatic. The owner must prove breach, causation, and loss. The charterer may argue that the ship could not have loaded the cargo in any event, that the owner misdescribed the ship, that the master’s rejection was unreasonable, that the stowage failure was the owner’s responsibility, or that the loss is too remote. Cargo disputes are therefore highly fact-sensitive.

United States Law and Arbitration Practice

United States maritime law and New York arbitration practice broadly recognise many of the same commercial principles. Under Gencon, the charterer’s obligation to load a full and complete cargo may expose the charterer to deadfreight if the ship is not filled as required. Detention may also be awarded where the charterer’s failure to provide cargo delays the ship before loading or outside the ordinary demurrage framework.

American awards show that cargo description matters. Charterers have been held responsible where the cargo actually tendered differed from the cargo described in the charter, caused stowage difficulties, created sanctions problems, failed to meet temperature or quality requirements, or required handling that the owner had not agreed to provide. Conversely, owners have failed where the cargo fell within the charter description and the ship, tanks, holds, or equipment were not ready for the cargo contracted.

U.S. law has also developed strict liability principles in relation to dangerous cargo, especially under COGSA and general maritime law. Some cases impose liability on shippers for damage caused by inherently dangerous cargo even without actual or constructive pre-shipment knowledge. Other decisions limit strict liability where the carrier already knew the cargo was dangerous and nevertheless exposed it to the very condition that triggered the known risk. The result depends heavily on knowledge, warning, causation, and the exact statutory or contractual basis of the claim.

Practical Drafting Points

A clear cargo clause should identify the cargo, quantity, margin, option holder, deck cargo rights, stowage factor, loading condition, special handling requirements, cargo documents, dangerous goods procedure, and responsibility for delay or extra expense. General expressions may be convenient at the fixture stage, but they often create disputes when the ship arrives and the cargo is not what the owner expected.

Where cargo has unusual dimensions, heavy lifts, long pieces, special securing requirements, sensitivity to contamination, temperature requirements, legal restrictions, moisture risks, liquefaction risk, gas emission risk, corrosion risk, or special discharge requirements, the charter should say so. The charterer should not rely on broad words such as lawful merchandise if the cargo requires special ship features or extraordinary precautions.

The owner should also describe the ship accurately. Hold sizes, hatch dimensions, tank coatings, gear capacity, crane limitations, grab suitability, draft, cubic capacity, bale capacity, and deadweight information must be given carefully. Cargo disputes often arise not because one party is dishonest but because both sides assume different things about what the ship can load and what the cargo requires.

Commercial Importance of the Cargo Clause

The cargo clause determines whether the ship is being used as the parties intended. It affects freight earned, cargo supplied, loading time, stowage plans, port suitability, cargo documents, insurance, class compliance, safety, and the allocation of risk. A small drafting ambiguity can become a substantial claim if cargo is shut out, the ship is delayed, cargo is damaged, or the ship is exposed to danger.

For that reason, parties should treat the cargo description as a working commercial specification, not a casual label. Owners, charterers, brokers, masters, shippers, receivers, surveyors, and cargo interests all rely on it. The more unusual the cargo or trade, the more important precise wording becomes.

Conclusion

Cargo in a voyage charterparty is not simply a statement of what goods will be carried. It is a detailed allocation of commercial and legal responsibility. The charterer must provide the contractual cargo in the required quantity and condition. The owner must provide a ship capable of receiving and carrying that cargo within the limits of the charter. Between those two duties lie the practical questions of cargo capacity, stowage, deck carriage, legality, dangerous goods, deadfreight, delay, and damages.

A well-drafted cargo clause reduces uncertainty before the ship reaches the loading port. It tells the charterer what cargo must be ready, tells the owner what cargo must be accepted, protects the master when unsafe cargo is tendered, and gives both parties a clearer basis for resolving disputes when the cargo actually presented differs from what was fixed.