In the European Union tens of billions of euros are spent on regional policy every year. A major part of this amount is allocated on the basis of regional gross domestic product per capita. In this paper by Henk Nijmeijer an inventory is drawn up of recent work on quality of regional accounts estimates. Special attention is paid to the instrument of process tables.The regional accounts should be compiled in close cooperation with the national accounts. The quality of the national accounts estimates could be improved by the findings of the regional accounts compiling process.