Service Nationality - assignment Last update on 07-07-2017 Information on how and where to make the application for allocation of Portuguese nationality. Read more Who The applicant himself; The legal representatives of the applicant. When At any time. Conditions Documents and requirements . More info Legislation The Portuguese Nationality Law Regulation of the Portuguese Nationality Other More information about the attribution of Portuguese nationality can be found at IRN site . Competent authorities Institute of Registries and Notaries The information presented is the responsibility of the competent authorities. The contents were translated automatically by use of a tool that is not perfect in all situations. Please refer to the terms and conditions of the portal.