Illegal logging and trade are one of the most important issues in world politics. As a result, many different international policies designed to tackle these issues have been developed. Although the role of state actors in certification mechanisms has been previously analyzed, it is still unknown how the main non-state players in certification act against the emergence of legality mechanisms. The case of Argentina presented in this paper shows how a coalition between international actors and land owners, gathered through forestry associations have managed to create a timber legality verification mechanism, even with financing from the national state.