title: "UCP 600 Article 31: Relationship with Other Articles"
slug: ucp-600-article-31-relationship-with-other-articles
date: 2026-07-15
author: DraftLC Research
category: UCP 600
reading_time: 8 min
regulatory_ref: UCP 600 Article 31

UCP 600 Article 31: Relationship with Other Articles

Introduction

UCP 600 Article 31 does not operate in isolation. Its instalment shipment provisions interact with several other articles that govern partial shipments, tolerance, transport documents, and examination timelines. Understanding how Article 31 connects to Articles 30, 32, 14, 16, and 28 is essential for anyone drafting, advising, or examining instalment credits. This guide maps the cross-references and explains how the interconnected provisions work together.

Failure Mode Analysis

Failure Mode 1: Applying Article 14(b) as a Single Clock for All Instalments

Some practitioners incorrectly start the five-banking-day examination clock when the first instalment arrives and expect all instalments to be examined within that window. In reality, each instalment triggers its own five-banking-day examination period under Article 14(b).

Failure Mode 2: Issuing a Single Discrepancy Notice for Multiple Instalments

When one instalment has discrepancies, banks sometimes issue a single notice covering that instalment and all others. Article 16 requires a notice for each discrepant presentation. A notice that bundles multiple instalments or includes non-discrepant instalments creates confusion.

Failure Mode 3: Ignoring the Article 31(c) Exception for Prohibited Partial Shipments

When a credit prohibits partial shipments but allows instalment shipments, Article 31(c) creates an exception that permits partial shipments within each instalment. Overlooking this exception means the credit is read as prohibiting all partial shipments, which conflicts with the instalment structure.

Failure Mode 4: Forcing Insurance Coverage Across All Shipments Instead of Per Instalment

Some beneficiaries present a single insurance document covering all shipments rather than separate coverage per instalment. Article 28 requires that insurance documents cover the goods from origin to the destination of the specific shipment being presented.

Failure Mode 5: Mismatching Tolerance Calculations with Article 32 Drawing Amounts

When Article 31 tolerance (5% per instalment) interacts with Article 32 drawing amounts, practitioners sometimes calculate the drawing amount without accounting for the per-instalment tolerance window. This leads to presentations that technically comply with the credit amount but exceed what the tolerance allows.

Deterministic Resolution Architecture

1. Cross-reference Article 31 with Article 30. Confirm that tolerance applies per instalment, not to the aggregate. Document the tolerance range for each shipment before preparing presentations.

2. Map Article 31 to Article 32. Align the shipment schedule with the drawing schedule. Each shipment typically corresponds to a drawing, but verify that the credit does not decouple the two.

3. Apply Article 14(b) per instalment. Each presentation triggers its own five-banking-day examination period. Track each instalment's presentation date separately.

4. Issue Article 16 notices per instalment. If an instalment is discrepant, issue the notice for that instalment only. Do not bundle multiple instalments into a single notice.

5. Verify insurance coverage per Article 28. For each instalment, confirm that the insurance document covers the specific shipment from origin to its stated destination.

6. Check Article 29 for expiry extensions. If a specific instalment's expiry falls on a bank closure day, confirm the extension applies to that instalment's presentation window.

7. Apply the Article 31(c) exception. When a credit prohibits partial shipments but calls for instalments, confirm that the credit is read as permitting partial shipments within each instalment.

8. Reconcile tolerance with presentation amounts. Before filing each instalment, confirm that the amount presented falls within the 5% tolerance for that specific shipment.

Conclusion

Article 31 is a bridge article — it connects the physical shipment rules to the financial presentation rules. Practitioners who understand the relationships between Article 31 and Articles 14, 16, 28, 29, 30, and 32 can navigate instalment credits with precision. The key is to treat each instalment as a self-contained transaction that interacts with the broader UCP 600 framework on its own terms.

Frequently Asked Questions

How does Article 31 interact with Article 30 on tolerance?

Article 30 establishes the 5% more-or-less tolerance. Article 31 specifies that this tolerance applies to each instalment independently, not to the total credit amount. A USD 100,000 credit with two shipments means each shipment carries its own 5% tolerance.

Does Article 14(b)'s five-day examination window apply per instalment?

Yes. Each instalment presentation triggers its own five-banking-day examination period. The examining bank does not have a single five-day window that covers all instalments.

What happens if one instalment is discrepant under Article 16?

The bank issues a discrepancy notice for that instalment only. The notice must comply with Article 16 requirements (notice of refusal, state all discrepancies, return documents or hold). Other instalments are unaffected.

How does Article 28 insurance work with instalment shipments?

Insurance documents must cover each shipment from the point of origin to the destination stated in the credit for that particular instalment. A single blanket policy covering all shipments may not satisfy Article 28 if it does not identify coverage per shipment.

Can Article 29 extend an instalment's expiry separately?

Yes. If a specific instalment's expiry date falls on a day the bank is closed, that instalment's presentation window extends under Article 29. Other instalments with different expiry dates are unaffected.

Source Notes

Context only. The following sources were identified during topic research. They provide operational context for this guide but are not the regulatory authority. Canonical authority is UCP 600, published by ICC.

• ICC | International Chamber of Commerce — "UCP 600 — Uniform Rules and Practice for Documentary Credits — Including eUCP Version 2.1" (published 2023-07-31). Context: Official UCP 600 publication listing. Publisher: ICC.
• ICC Academy — "Uniform Rules for Documentary Credits (UCP 600) — eBook" (published 2024-12-12). Context: ICC Academy eBook format of UCP 600 rules. Publisher: ICC Academy.
• ICC Academy — "Certified UCP 600 Specialist (CUCP)" (published 2025-07-12). Context: ICC Academy certification program for UCP 600 specialists. Publisher: ICC Academy.
• ICC Academy — "Guide to ICC Uniform Rules for Demand Guarantees — URDG 758: eBook" (published 2024-12-14). Context: ICC Academy URDG 758 reference material, relevant for understanding the separation between documentary credit and guarantee rules. Publisher: ICC Academy.
• ICC Academy — "Certified URDG 758 Specialist (CURDG)" (published 2026-06-03). Context: ICC Academy certification program for URDG 758 specialists. Publisher: ICC Academy.