General Average in Maritime Law
A ship engaged in the carriage of goods by sea is exposed to numerous maritime risks.
When a vessel and its cargo are in danger of destruction or severe damage, the ship’s master may intentionally take certain measures to preserve the interests of the cargo owners and the shipowner. For example, the master may deliberately ground the vessel to prevent sinking, direct the vessel to a safe port, or jettison part of the cargo to lighten the ship.
Under such circumstances, it would be inequitable for either the shipowner or the owner of the cargo that has been sacrificed to bear the entire loss individually.
Equity requires that the shipowner and the owners of cargo that safely reach their destination contribute proportionately, based on the value of their cargo at the destination, toward compensating the owner whose cargo was sacrificed. Similarly, if the master sacrifices part of the ship’s equipment for the benefit of all interests during a maritime storm or diverts to a port for extraordinary repairs, it would be unjust for the shipowner alone to bear the loss. Instead, all parties whose property benefits from such actions, including cargo owners, must contribute to compensating for the loss and covering related expenses. In all such cases, the act carried out by the ship’s master is referred to as a general average act, and the resulting loss is known as general average.
Calculation and Distribution of General Average Among Interested Parties
Definition of General Average
The technical definition of general average is outlined in Rule A of the York Antwerp Rules, which provides that general average arises only when extraordinary sacrifices or expenditures are intentionally and reasonably made for the common safety and for the purpose of preserving property from maritime perils encountered during a sea voyage.
In general terms, general average refers to the cooperation and contributions of all parties with interests in a maritime voyage in response to unexpected incidents that require extraordinary expenses.
All maritime nations have accepted this principle and may be regarded as a form of mutual insurance that predated the development of modern marine insurance.
General average applies when extraordinary costs are incurred during a maritime voyage to protect the remaining shared maritime interests by sacrificing or expending resources relating to maritime property.
Accordingly, the parties required to contribute toward general average losses include:
- All cargo owners are involved in the maritime voyage.
- The shipowner.
- The party is entitled to freight.
However, where loss results directly from an accidental incident rather than an intentional sacrifice for the common benefit, the injured party must bear the loss individually.
Legal Basis of General Average
There is no unanimous agreement among legal scholars regarding the legal basis of general average.
Some scholars consider it to be derived from natural law, while others attribute it to the doctrine of unjust enrichment. Another view traces its origin to the ancient maritime customs of the Island of Rhodes, under which the ship’s master, acting as a trustee for cargo owners, was implicitly authorized to sacrifice part of the cargo to preserve the ship and the remaining cargo for the benefit of the entire maritime venture.
Regardless of differing theoretical foundations, the York Antwerp Rules have now been incorporated into the legal systems of many countries. Even in jurisdictions where these rules have not been formally enacted as statutory law, they are recognized as binding customary rules. Their provisions are commonly incorporated into charterparty agreements and bills of lading and are applied in maritime practice.
General Average Under Iranian Maritime Law
Chapter Twelve of the Iranian Maritime Code, dedicated to general average, consists of Articles 185, 186, and 187. Under Article 185, maritime general average refers to extraordinary expenses and losses intentionally incurred for the preservation and safety of the ship, passengers, and cargo.
This provision is based on a translation of the definition contained in Rule A of the 1950 York Antwerp Rules. However, the translation is incomplete and does not fully correspond to the original definition, as Article 185 omits references to concepts such as sacrifice, reasonableness, and the existence of a common maritime adventure. Each of these concepts has developed through extensive maritime experience and holds significant legal value in resolving disputes among carriers, shipowners, and insurers.
Article 186 provides that maritime loss not classified as general average under Article 185 shall be considered particular average. Such loss is borne by the ship or by the specific cargo or property on board that has sustained damage or incurred expense.
Frequently Asked Questions Regarding General Average in Maritime Law
General average refers to expenses or losses intentionally incurred for the purpose of preserving the common interests of the ship and cargo in the face of maritime dangers. Its objective is the equitable distribution of losses among the shipowner, cargo owners, and other interested parties.
All cargo owners involved in the maritime voyage, the shipowner, and the party entitled to freight are required to contribute to general average losses. However, if the loss results directly from an accidental incident, the injured party bears the loss individually.
The legal basis of general average has been attributed to natural law, unjust enrichment, and ancient maritime customs such as those of Rhodes. Today, the York Antwerp Rules are widely recognized as binding either by statute or by customary maritime practice.
General average losses are distributed proportionately among the shipowner, cargo owners, and the freight interest based on the value of their respective interests in the maritime voyage, in accordance with the York Antwerp Rules.
Chapter Twelve of the Iranian Maritime Code, specifically Articles 185 through 187, defines general average as extraordinary expenses and intentional losses incurred to preserve the safety of the ship, passengers, and cargo. Article 186 further distinguishes a particular average, which is borne by the specific ship or cargo sustaining the loss.
Yes. Extraordinary expenses incurred to prevent the sinking of a vessel, preserve cargo, or rescue passengers may constitute general average and must be shared among the interested parties. What is the general average in maritime law?
Who is responsible for contributing to general average losses?
What is the legal foundation of general average?
How is the general average distributed among interested parties?
How is the general average defined under Iranian maritime law?
Does general average include expenses related to prevention and rescue operations?






If my cargo wasn’t damaged at all, can I still end up paying because someone else’s shipment was sacrificed?
Yes, that can happen under the principle of general average. If the sacrifice or expense was made to protect the entire voyage, cargo owners whose goods arrived safely may still be required to contribute. Whether that applies depends on the facts, the shipping documents, and the applicable rules, so those should be reviewed carefully before any conclusions are reached.
What if I think the shipping company declared general average when it really wasn’t necessary?
That is a valid concern. A general average declaration can be challenged in certain circumstances if there are questions about whether the legal requirements were actually met. These situations are very fact specific, and the voyage records and supporting documentation should be reviewed before assessing the strength of any objection.
Does having marine cargo insurance mean I never have to pay a general average contribution?
Not necessarily. Many marine cargo insurance policies cover general average contributions, but coverage depends on the specific terms of the policy. It is important to review your insurance documents before assuming a particular expense will be covered.
Can I get my cargo released if I refuse to sign the general average paperwork?
In many cases, cargo may not be released until the required security or documentation has been provided. The exact process depends on the carrier, the adjuster, and the contractual terms governing the shipment. If you are unsure about what you are being asked to sign, it is wise to have the documents reviewed first.
Is there a deadline to dispute a general average claim?
Deadlines can vary depending on the applicable law, contractual provisions, and the circumstances of the shipment. If you have received a demand for contribution, it is generally best not to delay. Having the documents reviewed promptly can help preserve any available rights.
Can a freight forwarder be responsible too, or is it only between the shipowner and cargo owners?
That depends on the freight forwarder’s role and the agreements involved. In some cases, a forwarder may simply act as an intermediary, while in others, contractual obligations could affect their responsibilities. The relevant contracts would need to be examined to determine potential liability.
What happens if one cargo owner refuses to pay their share?
The legal process for recovering unpaid contributions can vary depending on the jurisdiction and the agreements governing the shipment. A refusal to contribute does not automatically eliminate the obligation, and additional legal proceedings may sometimes be necessary.
Does general average apply only to international shipping, or can it happen on domestic voyages too?
Although it is most commonly encountered in international shipping, the principle may also apply in domestic maritime transportation depending on the governing law and the terms of the carriage contract. The applicable legal framework should always be reviewed for the specific voyage.
If the emergency was caused by the shipowner’s mistake, does everyone still have to contribute?
Potential fault by the shipowner can raise important legal issues, but it does not automatically determine the outcome of a general average claim. Questions involving negligence, contractual rights, and applicable maritime rules require a careful review of the facts before any legal opinion can be given.
Can the amount they ask me to contribute be negotiated, or is it fixed?
The contribution is typically calculated through a formal adjustment process rather than being chosen arbitrarily. If you believe the calculation is inaccurate or unsupported, you may have grounds to question it. A review of the adjustment and the supporting documents is often the best first step before deciding how to proceed.