(117) The codes of practice should represent a central tool for the proper compliance with the obligations provided for under this Regulation for providers of general-purpose AI models. Providers should be able to rely on codes of practice to demonstrate compliance with the obligations. By means of implementing acts, the Commission may decide to approve a code of practice and give it a general validity within the Union, or, alternatively, to provide common rules for the implementation of the relevant obligations, if, by the time this Regulation becomes applicable, a code of practice cannot be finalised or is not deemed adequate by the AI OfficeAI Officemeans the Commission’s function of contributing to the implementation, monitoring and supervision of AI systems and general-purpose AI models, and AI governance, provided for in Commission Decision of 24 January 2024; references in this Regulation to the AI Office shall be construed as references to the CommissionArticle 3(47). Once a harmonised standardharmonised standardA European standard adopted on the basis of a request made by the Commission for the application of Union harmonisation legislationRegulation (EU) 1025/2012 Art. 2(1)(c) is published and assessed as suitable to cover the relevant obligations by the AI OfficeAI Officemeans the Commission’s function of contributing to the implementation, monitoring and supervision of AI systems and general-purpose AI models, and AI governance, provided for in Commission Decision of 24 January 2024; references in this Regulation to the AI Office shall be construed as references to the CommissionArticle 3(47), compliance with a European harmonised standardharmonised standardA European standard adopted on the basis of a request made by the Commission for the application of Union harmonisation legislationRegulation (EU) 1025/2012 Art. 2(1)(c) should grant providers the presumption of conformity. Providers of general-purpose AI models should furthermore be able to demonstrate compliance using alternative adequate means, if codes of practice or harmonised standards are not available, or they choose not to rely on those.