The document outlines the budget preparation process, starting with the budget call that guides agencies in forming their proposals, incorporating citizen engagement through various participatory mechanisms. It details the review, recommendation, and presentation of these proposals to the president and the subsequent legislative process involving the House and Senate's deliberations and harmonization of the General Appropriations Bill (GAB). Finally, it explains the president's approval mechanism, including the power to veto specific provisions and the potential for re-enacting the previous year's budget if the new GAB is not passed on time.