Ensuring Transparency in Investor-State Dispute Resolution under UNCITRAL Arbitration Rules

The policy brief by CIEL and IISD advocates for the UNCITRAL Working Group II to establish formal rules on transparency for investor-state arbitrations. It argues that existing 1976 and 2010 UNCITRAL rules are designed for private commercial disputes and fail to ensure the openness required for disputes involving state responsibilities and human rights. The authors propose that these rules be integrated as an annex to the general UNCITRAL rules and apply to both existing and future treaties. Key proposed elements include public notice of arbitration, the publication of tribunal documents and awards, open public hearings, and a mechanism for amicus curiae submissions from interested non-parties.

• The 1976 and 2010 UNCITRAL arbitration rules are inadequate for investor-state disputes because they were designed for private commercial arbitrations and can allow parties to block the publication of awards or the holding of open hearings.
• Integrating transparency rules into the UNCITRAL framework is presented as essential for promoting the rule of law and human rights, as transparency is a foundation of good governance when state responsibilities are involved.
• The authors argue that new transparency rules must apply to both existing and future treaties to be substantive, noting that there were 2,750 bilateral investment treaties (BITs) in force as of the report's context, with 82 more concluded in 2009.
• The proposed transparency framework includes three primary pillars: public access to information (including notices of arbitration and tribunal documents), open public hearings, and the ability for non-disputing entities to file amicus curiae briefs.
• The brief suggests that a systematic approach to publishing non-confidential decisions and awards would align UNCITRAL with its mandate to promote the harmonization and unification of international trade law.

APA

International Institute for Sustainable Development (2011). Ensuring Transparency in Investor-State Dispute Resolution under UNCITRAL Arbitration Rules. https://www.iisd.org/system/files/publications/ensuring_transparency.pdf

Chicago

International Institute for Sustainable Development. Ensuring Transparency in Investor-State Dispute Resolution under UNCITRAL Arbitration Rules. 2011. https://www.iisd.org/system/files/publications/ensuring_transparency.pdf.

Wikipedia

{{cite report |author=International Institute for Sustainable Development |title=Ensuring Transparency in Investor-State Dispute Resolution under UNCITRAL Arbitration Rules |date=February 2011 |url=https://www.iisd.org/system/files/publications/ensuring_transparency.pdf |access-date=17 August 2026 |via=Climate Insights Directory}}

BibTeX

@techreport{internationalinstituteforsustainabledevelopment2011ensuring, author = {{International Institute for Sustainable Development}}, title = {{Ensuring Transparency in Investor-State Dispute Resolution under UNCITRAL Arbitration Rules}}, institution = {International Institute for Sustainable Development}, year = {2011}, month = feb, url = {https://www.iisd.org/system/files/publications/ensuring_transparency.pdf}, urldate = {2026-08-17}, note = {Indexed by Climate Insights Directory} }