The Convention states that the effectiveness of the Convention shall be evaluated on the basis of available scientific, environmental, technical and economic information, including:
- Reports on monitoring of environmental levels
- National reports submitted pursuant to Article 15
- Non-compliance information provided pursuant to Article 17
At its fourth meeting in May 2009 the Conference of the Parties completed the first effectiveness evaluation and established an Ad Hoc Working Group on Effectiveness Evaluation consisting of ten experts nominated by Parties, two from each United Nations regions.
The terms of reference for the working group are found in decision SC-4/32 of COP4.