The OECD has developed CLIs for the major six OECD non-member economies (Brazil, China, India, Indonesia, Russian Federation and South Africa) monitored by the organisation and six recently new OECD member countries (Korea, New Zealand, Czech Republic, Hungary, Poland and Slovak Republic). CLIs for above countries were released for the first time in April 2006. This technical paper which outlines the procedures used for compiling the CLIs for the twelve new countries.