 In the WTO secretariat tabulation of proposals from August 11, 2006 there is consideration of more "ambitious" changes to current obligations, such as establishment of a single window for exporters and importers at customs or accepting copies of documents for import and export in lieu of originals.Since 2002 there have also been talks about explicit ties between a package of technical assistance and development aid as part of any final agreement.Developing countries participated very actively in these negotiations and before the suspension of the Doha Round in late 2006 considerable progress had been achieved (World Bank, 2006).