Certified copy requirements for company constitutions require authenticated certification for foreign and Commonwealth incorporations under prescribed authorities. Any copy of a company's charter, statutes, memorandum and articles, or other constitutive instrument must be certified as a true copy. For companies incorporated outside the Commonwealth, certification may be by the government official custodian, a Notary Public, or a company officer, with signatures or notarial certificates authenticated by an authorised diplomatic or consular officer or by officials under the Commissioners of Oaths framework; an officer's certificate must be sworn before an authorised oath administrator whose status is authenticated. For Commonwealth incorporations, similar certification options apply, including a company officer's oath before an authorised local oath administrator.