The European Commission has said British nationals living in the bloc will need to obtain a new biometric residence document by the end of the year.The document can be requested by the approximately 1.2 million British people who currently live in the EU and any other Briton moving to the bloc this year, writes Politico.Under the terms of the Withdrawal Agreement, it is up to each EU country to decide whether to require U.K. nationals to apply and obtain a document proving their residence rights under the Brexit deal.Some EU countries have already indicated that they will apply a mandatory registration system, whereas others will automatically declare all eligible U.K nationals as residents. Brits in the latter group of countries are entitled to request a document proving their status.A spokesman for the EC press office in Brussels told Costa Blanca News that the Commission has adopted a decision that ensures governments issue UK nationals living in the EU, who are covered by the Withdrawal Agreement, with 'simple and uniform' documentation that meets high security standards.