One-stop shops have emerged as a way for governments to provide better services and improve regulatory delivery to citizens and business. The OECD Best Practice Principles for Regulatory Policy: One-Stop Shops for Citizens and Business offer a set of practical considerations for designing, operating, and reviewing one-stop shops. The Principles are based on a series of case studies and cover a wide range of tools and institutional arrangements to help governments improve their one-stop shops. This report is part of a series on “best practice principles” produced under the auspices of the OECD Regulatory Policy Committee. As with other reports in the series, it extends and elaborates on principles highlighted in the 2012 Recommendation of the Council on Regulatory Policy and Governance.