The plenary session of the ESC meets weekly or whenever needed, in ordinary sessions at the call of the ESC President, performing the following duties:
- endorses draft normative acts;
- elects, upon the proposal of the parties, the president and validates one vice-president proposed by each party and the members of the executive office, also proposed one by each party;
- adopts its own organization and operation regulations;
- establishes the composition of permanent specialist commissions;
- approves the own draft of the budget of revenues and expenses, as well as the report on the budget execution;
- debates and adopts the proposals for decisions elaborated by the specialized commissions;
- appoints the secretary general of the Economic and Social Council.