Introduction to Letter of Credit Rule Sets
When it comes to using Letters of Credit (LCs) in international trade or financial guarantees, choosing the right rule set can make a major difference. The two most widely accepted frameworks are UCP 600 and ISP98. But they’re not interchangeable—they serve different purposes, have different interpretations, and are preferred in different industries.
So if you’re wondering about UCP 600 vs ISP98: what’s the difference for Letters of Credit, this guide will walk you through it clearly and simply.
What is UCP 600?
The Uniform Customs and Practice for Documentary Credits, or UCP 600, is a set of globally accepted rules developed by the International Chamber of Commerce (ICC). It governs the operation of documentary credits (commercial LCs).
Key facts:
- Published in 2007 by the ICC
- Applies mainly to commercial letters of credit
- Focuses on the presentation of documents like invoices, bills of lading, and certificates
- Accepted in over 175 countries
- Aims to standardize LC terms and reduce disputes
What is ISP98?
The International Standby Practices 1998, or ISP98, was created by the Institute of International Banking Law & Practice and is mainly used for standby letters of credit (SBLCs).
Key features:
- Used for financial guarantees, not goods transactions
- Allows non-documentary conditions (e.g., declarations of default)
- More flexible in legal language and intent
- Widely used in performance, bid, and payment guarantees
Key Differences Between UCP 600 and ISP98
| Aspect | UCP 600 | ISP98 |
|---|---|---|
| Purpose | Trade LC for goods/services | Standby LC for financial/security guarantees |
| Developed By | International Chamber of Commerce (ICC) | Institute of International Banking Law & Practice |
| Year Published | 2007 | 1998 |
| Document Focus | Heavy on shipping & customs docs | Allows more general certification or demand letters |
| Use Case | Import/export trades | Bid bonds, corporate guarantees, standby payments |
| Legal Style | Detailed documentary terms | Principles-based interpretation |
| Non-Documentary Conditions | Not accepted | Often accepted |
When to Use UCP 600
Use UCP 600 when:
- You’re shipping physical goods
- You need a document-driven LC to confirm delivery
- You’re dealing with international trade where banks require compliance with strict terms
- You’re managing payment based on proof of shipment
When to Use ISP98
Use ISP98 when:
- You’re issuing or receiving a standby LC
- The LC is a guarantee against non-performance
- You’re dealing with construction projects, tenders, or lease agreements
- You need flexibility to define custom claims or declarations
