Gross capital formation estimates are subject to scrutiny from the European Statistical Commission as to their compliance, comparability and reliability in accordance with the harmonisation of gross national income regulation (council regulation 1287/2003). Article 1 of the regulation states that GNI shall be defined in accordance with the European system of national and regional accounts
(ESA95). Where Member States are deemed not to be compliant with regulations 'Reservations' are placed on the data involved. This article details a brief guide to the GNI process and the reservations placed on the UK GCF estimates.