UCP 600 is the International Chamber of Commerce's Uniform Customs and Practice for Documentary Credits, the rulebook banks and traders use for letters of credit. It has 39 articles covering how credits are issued, confirmed, examined and paid, and it has been in force since 1 July 2007. It is not a law. It governs a credit only when the credit's text says it is subject to UCP 600, and in the United States it operates alongside state law under Article 5 of the Uniform Commercial Code.
A reader usually meets UCP 600 as a single line in a contract or a draft credit: "This credit is subject to UCP 600." This page explains what that line brings with it, what it leaves out, and how it interacts with the law a US business already works under.
Where UCP 600 comes from
The ICC is a private business organization, not a government. Its Banking Commission drafts rules that banks and traders agree to use, so that a credit issued in one country is read the same way by a bank in another.
UCP 600 is the current edition of rules first issued in 1933. It replaced UCP 500 and took effect on 1 July 2007. The rules have not been replaced since. In March 2023 the ICC published a set of guidance papers on UCP 600 (read 2026-09-11), covering on-board notations on transport documents, the principle of strict compliance, the use of drafts, and a simple credit format. The ICC presents these as recommendations in accordance with its existing banking rules, not as a revision.
Because this is a live rulebook with published guidance, the edition and any supplement named in a credit should be checked against the ICC's own publications at the time a credit is issued, rather than taken from any summary, including this one.
What UCP 600 covers
The 39 articles deal with the life of a documentary credit from issue to payment. The main areas:
| Area | What the rules address |
|---|---|
| Definitions and interpretation | What "credit", "complying presentation", "honor" and "banking day" mean |
| Independence | A credit is separate from the sale contract, and banks deal with documents, not goods |
| Bank undertakings | What the issuing bank and any confirming bank each promise |
| Advising and amendments | How a credit is advised to the seller and how changes take effect |
| Examination of documents | The standard banks apply and the time they have to decide |
| Discrepancies | What a bank must do when it refuses documents |
| Transport, insurance and commercial documents | What each document must show to be acceptable |
| Transfer and assignment | When a credit can be transferred to a second beneficiary |
| Force majeure and disclaimers | What banks are not responsible for |
Two of these do most of the practical work.
Independence. Under UCP 600, a credit is a separate transaction from the sale it supports, and banks deal with documents, not with the goods or services they describe. US law says the same thing in its own words: under UCC section 5-103(d) (read 2026-09-11), an issuer's obligations to the beneficiary are independent of whether the underlying contract was performed.
Examination. Banks examine the documents on their face to decide whether they comply. UCP 600 gives each bank a maximum of five banking days after the day of presentation to decide. If a bank refuses, it must give a single notice listing every discrepancy, so it cannot refuse on one ground and raise another later.
Strict compliance: why small errors matter
Documents must comply with the credit's terms, with UCP 600, and with international standard banking practice. The ICC's guidance papers treat strict compliance as a principle in its own right.
In practice, this is where most trouble arises. A date outside the credit's window, a description that does not match, a missing signature or a transport document without the required notation can each make a presentation discrepant. The International Trade Administration's letter of credit page (read 2026-09-11) warns that letter of credit documents are detailed and prone to errors and discrepancies.
A discrepant presentation does not always mean non-payment. The buyer can agree to waive the discrepancy, or corrected documents can sometimes be presented within the credit's validity. But the bank's own promise to pay applies only to a complying presentation.
For a small exporter this timing matters. A business funded through bootstrapping, rather than through any of the outside types of startup funding, has usually spent its own cash producing and shipping the goods, so every day between presentation and payment, and every discrepancy that delays it, is money it is waiting for.
What UCP 600 does not cover
Knowing the edges of the rulebook matters as much as knowing its contents.
It does not apply by itself. UCP 600 governs a credit only when the credit says it is subject to UCP 600. A credit that is silent on which rules apply is not automatically under them.
It does not cover fraud. UCP 600 has no rule on what happens when documents are forged or a presentation is fraudulent. That question is left to the governing law. In the United States, Article 5 of the UCC deals with it, and the grounds on which a court may stop payment are narrow.
It does not decide governing law or disputes. Which country's or state's law applies, and which court or arbitration hears a dispute, are set elsewhere: in the credit, in the parties' agreements, or by conflict-of-laws rules.
It does not govern other instruments well. Documentary collections have their own ICC rules, URC 522. Demand guarantees have URDG 758. Standby letters of credit can use UCP 600, but many use ISP98, which was written for standbys, because several UCP 600 articles assume a shipment of goods that a standby does not have.
It does not cover electronic presentation in full. The ICC says in its eUCP page (read 2026-09-11) that the eUCP is a supplement and digital companion to UCP 600 for electronic presentation. A credit that expects electronic documents typically names the eUCP as well.
How UCP 600 fits with US law
In the United States, letters of credit are governed by state law under UCC Article 5. The two work together rather than competing.
UCC section 5-103(c) (read 2026-09-11) says that the effect of Article 5 may be varied by agreement or by a provision stated or incorporated by reference in an undertaking, which is how a credit adopts UCP 600. It adds that a term generally excusing liability or generally limiting remedies is not enough to vary obligations Article 5 prescribes.
Federal banking rules also recognize UCP 600 by name. 12 CFR 7.1016 (read 2026-09-11) lists the UCP, including UCP 600, among the rules of practice under which national banks may issue letters of credit and other independent undertakings.
The result for a US business is a layered set of rules: UCP 600 where the credit incorporates it, Article 5 for what UCP 600 does not cover or cannot vary, and the terms of the credit itself on top. Where a credit is issued or governed outside the United States, including in Canada, the law around UCP 600 differs, and the question of which law applies belongs with an attorney in that jurisdiction.
Reading a credit that names UCP 600
When a contract or a draft credit says it is subject to UCP 600, the questions that usually matter are practical:
- Does it name the right rules for the instrument? UCP 600 for a commercial credit, possibly ISP98 for a standby.
- Does it modify or exclude any UCP 600 articles? Credits can do so, and those changes override the standard text.
- Does it name the eUCP if documents will be presented electronically?
- Are the documents and data it requires ones the seller can actually produce, exactly as worded?
- Which law governs, and where are disputes heard?
A bank's trade finance team and an attorney who reviews international sales contracts are the people placed to answer these, and the answers depend on the specific credit. The basic transaction steps are covered in this site's explainer on how a letter of credit works.
FAQ
Is UCP 600 a law? No. It is a set of private rules published by the International Chamber of Commerce. It governs a letter of credit when the credit incorporates it. In the United States, state law under UCC Article 5 applies alongside it, and Article 5 allows parties to vary many of its effects by incorporating rules such as UCP 600.
When did UCP 600 come into force? UCP 600 took effect on 1 July 2007, replacing UCP 500. The ICC has since published guidance papers on its use, in 2023, and the eUCP as a supplement for electronic presentation, without replacing UCP 600 itself.
How long does a bank have to examine documents under UCP 600? UCP 600 gives each bank a maximum of five banking days following the day of presentation to determine whether the presentation complies. A credit can set its own terms on some points, so the credit itself should be read alongside the rules.
Does UCP 600 apply to standby letters of credit? It can, if the standby says so. Many standbys instead name ISP98, the International Standby Practices, which were written for standbys. US federal banking rules recognize both. The choice changes how a demand is examined and handled.
The short version
UCP 600 is the ICC's rulebook for letters of credit, in force since 1 July 2007. It applies when a credit says so, it treats the credit as independent of the sale, and it holds banks and sellers to strict document compliance within set time limits. It says nothing about fraud or governing law, which US state law under Article 5 fills in. This page explains the rules as the ICC and US law describe them; it is not legal advice, and what a specific credit requires is a question for the issuing bank and an attorney.