In July 1999 we published an article in Economic Trends reviewing work on the production of Constant Price Input-Output (KPIO) tables.The aim of the present article is to report on progress on implementing the plans in the 1999 article and how those plans have changed since July 1999. The inconsistency in growth measures for manufacturing, the key discrepancy highlighted in the article, has been extensively covered in the Short-Term Indicators Review. The review and a report on progress in implementing its recommendations are available on the National Statistics Website and will not be covered further here. The rest of this article will deal with work on KPIO tables.