Glossary / LOI
LOI — explained
LOI is an abbreviation that means three different things depending on context: a guarantee/indemnity document in shipping and logistics (Letter of Indemnity), a statement of intent in trade and company mergers (Letter of Intent), and a laboratory test method in chemistry (Loss on Ignition); which one is meant can only be determined from the context of the sentence.
In foreign trade and logistics operations, the meaning encountered most often is Letter of Indemnity: an undertaking the importer gives so that the carrier or agent can release the cargo without the original bill of lading in hand. In company acquisitions and wholesale trade the 'letter of intent' meaning is used, and in laboratory and material analysis the 'loss on ignition' meaning is used; the three are entirely independent documents.
In shipping and logistics, an LOI (Letter of Indemnity) is a guarantee/indemnity document the importer gives to the carrier — usually countersigned by its bank — in situations where the original bill of lading has not yet reached the carrier or agent, for example on a short sea voyage where the vessel arrives at the discharge port while the bill of lading is still in transit by courier. On the strength of this document, the carrier gains the right to recover from the importer any loss arising from delivery to the wrong party. The Baltic and International Maritime Council (BIMCO) and international P&I clubs (mutual marine insurance associations) publish standard LOI forms; even using these standard forms does not remove the carrier's risk entirely.
In trade and company merger/acquisition negotiations, an LOI (Letter of Intent) is a preliminary, generally non-binding agreement showing that the parties intend to proceed with a transaction. Certain clauses, such as confidentiality or exclusivity, may be treated as binding, but the main terms of the deal do not create a binding obligation for the parties until the final contract is signed — this is a statement of general commercial practice, not legal advice.
In chemistry and material analysis, an LOI (Loss on Ignition) is a standard laboratory test that measures the loss of organic matter/volatile components when a sample is burned at high temperature; it can appear on quality certificates in mining and mineral exports, but it has no direct connection to customs or logistics operations — this is not ACR's area of expertise, and it is mentioned on this page only to avoid confusion over the abbreviation.
When You Encounter It
For ACR's logistics clients, LOI comes up most often in its Letter of Indemnity sense: the vessel has arrived at the port, but the original bill of lading has not yet reached them by courier. So that the cargo can be collected without delay, the importer gives the carrier or agent a Letter of Indemnity — usually countersigned by the importer's bank, because the carrier does not want to rely on a single company's undertaking alone.
The same abbreviation can also turn up in an entirely different context: an exporter client of ours may confuse an "LOI" sent to them during an investment or partnership discussion with the shipping document. Which LOI is meant is always clear from the rest of the text — the parties, the subject, the other terms used.
What It Doesn't Cover
- "Giving or receiving a Letter of Indemnity replaces the legal function of the original bill of lading" is a mistaken idea: a Letter of Indemnity is a risk-transfer/indemnity undertaking between the parties, and it does not legally replace the bill of lading's function as proof of ownership/right to delivery.
- "Once a Letter of Indemnity is signed, the carrier's risk of misdelivery disappears" is a mistaken idea: even in the standard forms published by international P&I clubs themselves, it is stated that delivery without the original bill of lading is the carrier's own commercial decision and risk, and falls outside standard insurance cover.
- "Signing a Letter of Intent replaces the final contract and binds the parties" is generally a mistaken idea: a Letter of Intent is mostly non-binding; only clauses specifically stated to be binding, such as confidentiality or exclusivity, may bind the parties. This is a statement of general practice, not a substitute for legal advice on a specific document.
Often Confused With
| Comparison | Difference |
|---|---|
| LOI vs LOA (Length Overall) | LOI and LOA look similar but belong to entirely different fields: LOA (Length Overall) is a shipping/port term for a vessel's overall length, used in technical calculations such as port acceptance or berth suitability — it has no connection to any meaning of LOI. |
| LOI vs Bill of Lading | Bill of lading is the primary evidence of the contract of carriage and of the right of ownership/delivery over the cargo. A Letter of Indemnity, by contrast, is a separate guarantee document the importer gives — in exchange for the carrier accepting the risk — when this bill of lading is not available; it does not replace the bill of lading, it is a document that tries to compensate for its absence. |
Frequently Asked Questions
What does LOI mean in shipping?+
In shipping, LOI stands for Letter of Indemnity: an undertaking the importer gives — usually through its bank — so that the cargo can be released by the carrier or agent without the original bill of lading in hand.
What does LOI mean in logistics?+
In logistics operations LOI generally carries the same meaning — Letter of Indemnity: a guarantee document given to the carrier so that cargo can be collected in situations such as a delayed or lost bill of lading. It is not a customs document.
What is an LOI document?+
LOI refers to three different documents depending on context: Letter of Indemnity in shipping, Letter of Intent in trade and company acquisitions, and Loss on Ignition in chemistry. Which one is meant is clear from the context of the text.
What does LOI mean in chemistry?+
In chemistry and material analysis, LOI stands for Loss on Ignition: a standard laboratory test that measures the loss of organic matter/volatile components when a sample is burned at high temperature. It has no connection to customs or logistics operations.
What does LOI stand for?+
What LOI stands for depends on context: Letter of Indemnity in shipping, Letter of Intent in trade, Loss on Ignition in chemistry. All three are abbreviated "LOI" but are independent, unrelated documents.
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Related Terms
Where This Term Comes Up in Our Work
LOI is one of the documents we track in our logistics and transportation service.
Logistics and TransportationContracted warehouses, container loading, and inland transport organisation.These documents are not defined in Turkish customs legislation. The explanation here is based on practical experience encountering these documents in customs and foreign trade operations; it is not legal advice.
Source
BIMCO — No Delivery of Cargo Without Original Bill of Lading — The Baltic and International Maritime Council (BIMCO) on the practice of delivery without an original bill of lading and the use of a Letter of Indemnity; this source only covers the shipping/logistics meaning (Letter of Indemnity) and does not verify the page's other two meanings (Letter of Intent, Loss on Ignition).
Last updated: August 15, 2026