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

ISP98: International Standby Practices - Rules specifically governing standby letters of credit and bank guarantees

Banking Act (Chapter 19): Singapore's primary banking legislation governing banking operations and regulatory requirements for letters of credit

Bills of Exchange Act (Chapter 23): Singapore legislation governing negotiable instruments and related banking documents

Electronic Transactions Act (Chapter 88): Singapore law governing electronic transactions and digital signatures in banking documents

MAS Guidelines on Letters of Credit: Regulatory guidelines issued by Monetary Authority of Singapore specific to letter of credit operations

ABS Guidelines: Association of Banks in Singapore guidelines for standardized banking practices including LC operations

MAS Notice 646: Specific notice on risk management practices for banks issuing letters of credit

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

SWIFT Standards: International standards for electronic communication and formatting of letters of credit