This paper discusses the role of self-determined commitment in the methodological dynamics of the Environmental Integration Tool Producer (EIT Producer) and its potential impact on the adoption of pro-environmental behaviors by local economy actors in the Global South. This tool is part of the EIT Approach developed by Louvain Coopération, the NGO associated with Université Catholique de Louvain (Belgium), which aims to support social actors in productivity and consumption activities in Africa, Andean America, and Asia. The aim is to highlight the conceptual and methodological elements of the OIE Producer, in order to understand the role of self-determined commitment in the expected ends and in the impact of the tool. The integration between economic development and the environment is a central issue in the challenges of contemporary global society. This article intends to contribute with answers to such challenges, especially with regard to the development of methodologies that are effective in governmental and non-governmental cooperation programs engaged for sustainable development.