Working Group I

• 2004-2012: Procurement
• 2001-2003: Privately Financed Infrastructure Projects
• 1969-1971: Time-limits and Limitation (Prescription)

Working Group II

• 2000 to present: Arbitration and Conciliation
• 1981-2000: International Contract Practices
• 1968-1978: International Sale of Goods

Working Group III

• 2010 to present: Online Dispute Resolution
• 2002-2008: Transport Law
• 1970-1975: International Legislation on Shipping

Working Group IV

• 1997 to present: Electronic Commerce
• 1992-1996: Electronic Data Interchange
• 1988-1992: International Payments
• 1973-1987: International Negotiable Instruments

Working Group V

• 2001 to present: Insolvency Law
• 2000: International Contract Practices
• 1995-1999: Insolvency Law
• 1981-1994: New International Economic Order

Working Group VI

• 2002 to present: Security Interests