This document presents the Recommendation on Effective Public Investment Across Levels of Government that was adopted by the OECD Council on March 12, 2014. A Recommendation is an OECD instrument approved by the Council that results in international norms and standards, best practices and policy guidelines. Recommendations are not legally binding, but practice accords them great moral force as representing the political will of Member states. The Recommendation was developed by the OECD Territorial Development Policy Committee (TDPC). It was submitted to an extensive consultation procedure within the OECD and externally, and was supported by Ministers at the TDPC Ministerial meeting on 5-6 December 2013 in Marseille. The purpose of the principles set out in the Recommendation is to help governments at all levels to assess the strengths and weaknesses of their public investment capacity, a critical shared responsibility across levels of government, and set priorities for improvement. The OECD will further work towards the implementation of these Principles by developing a supporting Toolkit to guide policy-makers and practitioners. For more information, please visit our website at: www.oecd.org/regional-policy or contact: TDPCprinciples@oecd.org