New forms of conflict between individual private interests of public officials and their public duties can arise as the public sector becomes increasingly commercialised and works more closely with the business and non-profit sectors. Governments need to ensure that public officials perform their duties in a fair and transparent way. These OECD guidelines provide the first international benchmark in this field, which aim to help governments review and modernise policies designed to prevent public sector conflict of interests and corruption. The report reviews OECD trends and includes selected case studies which consider innovative practices adopted, and key elements of legal and institutional frameworks. The countries covered are Australia, Canada, France, Germany, New Zealand, Poland, Portugal and the United States.