Transparency International considers the OECD Convention on Combating Bribery of Foreign Public Officials to be a key building block in the international legal framework to combat corruption. Effective enforcement of the Convention would significantly reduce the supply side of international corruption as most major international companies have their headquarters in signatory states. TI and its national chapters have strongly promoted the adoption of the Convention, its ratification and the passage of implementing legislation by signatory states. TI has also participated actively in the OECD's follow-up monitoring program.This Progress Report approaches monitoring from a different perspective and presents a nongovernmental assessment of enforcement of the OECD Convention. It is based on information provided by TI national chapters in twenty-four OECD signatory states, which represent about ninety-five percent of OECD exports. Lawyers and other highly qualified professionals and academics were chosen by these national chapters as expert respondents to a TI questionnaire.