The Fourth Regional Implementation Meeting (RIM-4) was held in Geneva on 1 and 2 December 2009(Palais des Nations). RIM-4 will prepare the contribution from the UNECE region to the 18th Session of the Commission on Sustainable Development (CSD-18)which will be held from 3 – 14 May 2010 in New York. Recently launched UNIDO/UNEP RECP (Resource Efficiency and Cleaner Production) was represented by Dr Branko Dunjic, director of the CPC of Serbia. RIM-4 evaluated progress made in implementing sustainable development goals in the above areas in the UNECE region and identified obstacles and constraints. The meeting  also discussed the challenges ahead and necessary next steps to be taken.