The OCC, established in 1995, is the mandatory professional accountancy organization for chartered accountants (Contabilista Certificado (CC)) and accounting firms (Sociedades Profissionais de Contabilistas Certificados e Sociedades de Contabilidade) in accordance with Decree Law 459/99, amended by Law No. 139/2015 and Law No. 119/2019. OCC members prepare tax and financial statements and are the only members of the profession allowed to sign financial statements along with company representatives. In accordance with the Law, the OCC’s responsibilities include the following: (i) maintaining the registry of chartered accountants and accounting firms; (ii) implementing IPD and CPD requirements for chartered accountants; (iii) enforcing ethical standards; (iv) establishing an I&D system for its members; (v) administering and monitoring of the CPD program; and (vi) establishing a quality assurance system (QA) for its members. In addition to being a member of IFAC, the OCC is a member of the Committee for Integration Europe—Latin America (CILEA), a member of the European Federation of Accountants and Auditors for SMEs (EFAA), and member of the Fédération des Experts-Comptables Mediterranéens (FCM).