One of the most significant obstacles in working with LCA and other system analytical tools where enviromental data are used, is the availability of adequate and well-documented inventory (environmental) data. Furthermore, it is preferable if the quality data has been reviewed to some degree. Both process knowledge and environmental competence are needed in order to review environmental data. The Sirii Environmental Data Network holds this unique competence profile, which enables the network to review environmental data with respect to the correctness of documentation as well as the reasonableness of the numerical value. The routine for review of Sirii SPINE documented data is presented in this report.