Since 1964, the OAS has enabled fluid dialogue and participation with workers and employers through two bodies: the Trade Union Technical Advisory Council (COSATE) and The Business Technical Advisory Committee on Labor Matters (CEATAL), both of which have the status of consultative body within the framework of the Inter-American Conferences of Ministers of Labor (IACML). These consultative bodies bring together the main trade union confederations and business organizations of all OAS Member States, and actively participate in the IACML process: they participate in planning and decision-making meetings, express the voice of workers and employers in the negotiation of documents and at the time of defining the actions of the Conference in each cycle, and provide technical inputs in all the activities of the Conference.

Additionally, they actively participate in the process of the Summit of the Americas and the General Assembly, where they have spaces for dialogue with governments.

The OAS is also the Technical Secretariat of COSATE and CEATAL. In this regard, it convenes and organizes their meetings, provides technical and programmatic inputs, and coordinates the participation of workers and employers in the processes of the Summit of the Americas and the OAS General Assembly.