UCP 600: Uniform Customs and Practice for Documentary Credits - The primary international rules governing documentary credits and letters of credit transactions

ISP98: International Standby Practices - Rules governing standby letters of credit, providing alternative framework to UCP 600

Bills of Exchange Act: Singapore legislation governing negotiable instruments including certain aspects of letters of credit

Banking Act: Primary legislation governing banking operations and regulations in Singapore, including letter of credit activities

Electronic Transactions Act: Singapore law governing electronic transactions, relevant for electronic letters of credit

ICC Rules: International Chamber of Commerce rules providing standards for international banking operations

ISBP: International Standard Banking Practice - Detailed guidelines for examination of documents under UCP 600

MAS Guidelines: Monetary Authority of Singapore regulatory guidelines for financial institutions handling letters of credit

AML/CFT Regulations: Anti-Money Laundering and Countering the Financing of Terrorism regulations applicable to letter of credit transactions

SGX Rules: Singapore Exchange rules that may apply to letters of credit in securities trading context

Contract Act: Singapore Contract Act (Cap. 53) governing general contractual principles applicable to letters of credit

UNCITRAL Convention: UN Convention on Independent Guarantees and Stand-by Letters of Credit providing international standards

Common Law Principles: Singapore's common law principles and precedents regarding letters of credit interpretation and enforcement

Banking Industry Standards: Local banking practices and standards specific to Singapore's banking industry for letter of credit operations