When will a passport be needed to go the UK from the EU? When the UK was a member of the EU there was no need for a passport to visit the UK. It was enough with a ID card from your EU country or a driving license. As brexit process is going on when are EU citizens meant to use their passports to visit the UK?
The UK remains an EU member state until 31st October 2019. Unless a further extension is requested and granted. (One is obligated to be requested if an agreement is not reached by the 19th Oct) At the time of writing, there have been no changes to identity document requirements for EEA (includes EU) or Swiss citizens visiting the UK - they can enter the UK with a valid passport or a national identity card issued by such a state. We don't know today whether that will change after March 2019.
There are two kinds of EU laws: regulations and directives. Regulations have direct effect throughout the EU, which helps harmonize the laws of the Single Market. Directives instruct the member states to implement their own laws to some effect, which helps adapt the laws to that member state's circumstances. Reverse engineering is the subject of the EU Computer Programs Directive. As a directive it has no direct effect in the UK. The directive was implemented by amending the UK's Copyright, Designs and Patents Act 1988. The Copyright Act is UK law, created by parliament and not the EU. It will continue to be in effect even after a Brexit. Note that many EU regulations also have corresponding passages in UK law, for example the Data Protection Act 2018 mirrors the GDPR. And per the European Union (Withdrawal) Act 2018, all relevant EU laws will be transformed into domestic UK law upon exit day, including the principle of supremacy of (ex-)EU law over domestic law. That way, the regulatory environment doesn't suddenly change. So even if reverse engineering were the subject of an EU regulation, it would continue to apply after Brexit and would supersede pre-Brexit UK laws to the contrary.
UK, Identity Documents Act 2010, false identity documents etc: Possession of false identity documents etc with improper intention (1) It is an offence for a person (“P”) with an improper intention to have in P's possession or under P's control— (a) an identity document that is false and that P knows or believes to be false, (b) an identity document that was improperly obtained and that P knows or believes to have been improperly obtained, or (c) an identity document that relates to someone else. Each of the following is an improper intention— (a) the intention of using the document for establishing personal information about P; (b) the intention of allowing or inducing another to use it for establishing, ascertaining or verifying personal information about P or anyone else. ... Possession of false identity documents etc without reasonable excuse (1) It is an offence for a person (“P”), without reasonable excuse, to have in P's possession or under P's control— (a) an identity document that is false, (b) an identity document that was improperly obtained, ... Such an identity document could be an &quot;an immigration document&quot;, &quot;a passport issued by or on behalf of the authorities of a country or territory outside the United Kingdom or by or on behalf of an international organisation&quot; or &quot;a document that can be used (in some or all circumstances) instead of a passport&quot; (e.g. a European country's identity card).
You do not have to prove that you are an EU citizen, because EU citizenship is entirely irrelevant to the GDPR. Have a look at Article 3, which basically says that GDPR applies if you are in the EU or if the company is in the EU. If the company is in the EU, therefore, you do not need to send them anything or prove anything about yourself to invoke GDPR. If the company is outside the EU, you can send proof of address or other evidence that you are in the EU, which might be something that they already have, like your IP address.
All residents in Germany need to have a registered address. The reasons for that are numerous: no need for a separate voting registration, it gives a place to deliver legal notices, it helps enforcing tax regulation (though tax law has another definition of "residence"), certain taxes are assigned to the municipality where you are registered, no need to do a utility bill or credit report dance when trying to prove your address to third-parties, it was always done like that. The last is reason enough as far as bureaucracy is concerned. As far as your question goes, there are a few wrong assumptions. First, nobody is trying to limit or deny registrations. Municipalities actually get money for every resident they have registered through tax allocation. Second, if you (semi-)permanently live at some place you are not considered "officially homeless" but as someone has didn't properly register themselves (which could result in a fine). Third, multiple people can be registered at the same address. How else could people register themselves in huge apartment buildings? Or even a family living together? If there is a suspicious amount of people registered they might want to check whether other regulation (such as minimum space per person) is adhered to. Fourth, to register somewhere you need proof that you actually live there. This is where you probably ran into problems. This proof is usually a letter given by the person allowing you live at a place. Note that this is not necessarily the owner of the place but literally the person allowing you to stay (the authorities can check with the owner though). Often subletters won't sign that piece of paper, either because they think they are not allowed to or they don't have permission by the owner to sublet the place to begin with. If that happens you are supposed to tell that to the authorities (§&nbsp;19 Abs.&nbsp;2 BMG) who then can choose to fine the one providing the place for refusing to sign the paper. (The need for proof was recently reintroduced after it was noticed that there was a huge amount of people who registered at an address where they didn't actually live.) Fifth, if you never have been registered before you can't actually properly pay your taxes as you need a tax ID for that. This is automatically assigned when you – surprise – register for the first time. If you are not an EU/EEA/CH citizen you also need to register yourself before they can change anything about the residence permit within Germany. To end with an answer to your question if taken literally: German citizens can register themselves as homeless (ohne festen Wohnsitz) if they really are. For foreigners this is a bit more complicated. EU citizens usually don't have freedom of movement rights if they can't properly support themselves, a living space is supposed to be part of that. Other foreigners likely violate their residence permit.
@DaleM isn't wrong, but some elaboration is in order. You (almost always) gain your citizenship (or nationality) in the first instance, at birth, without the agreement or assent of you or your parents. It is thrust upon you. Usually, your country of citizenship must consent to end your citizenship (or authorize you to do so unilaterally) under that country's laws. Once you have citizenship or nationality, in practice, in most countries, you can generally only renounce your citizenship if you contemporaneously or already have a citizenship somewhere else. You are at a minimum strongly dissuaded from doing so and are not a sympathetic candidate for relief under laws related to statelessness if you willfully put yourself in this position knowing the consequences. This is a feature of the citizenship laws of most countries in order to implement international treaties designed to prevent statelessness which are widely adopted. When an adult is naturalized as a citizen of a new country, usually, their old citizenship is revoked by operation of law under the laws of their old country. In many countries, including the U.S., there are high fees and tax consequences for renouncing your citizenship. Any potential tax liabilities in the future that were not yet due under U.S. law (e.g. capital gains taxes an appreciated assets not yet sold, and estate taxes that would be due if the person renouncing their citizenship had died on that date) are owed immediately upon applying to renounce your citizenship. A stateless person is, subject to quite narrow exceptions, still subject to all of the laws of the place where they are located, including almost all of its criminal laws (except treason) and its tax laws (at least on income earned in that country). A stateless person lacks many rights. They can't travel internationally (there are exceptions under treaty in some cases, but obtaining those rights is cumbersome at a minimum). They can't vote. They typically aren't entitled to domestic welfare state benefits like national health insurance, disability payments, unemployment benefits, subsidized housing, old age or retirement benefits, etc. They can't work in a licensed or regulated profession. They may not even be able to sign a lease. They may not be allowed to own a company or serve as an officer or director of a company or as a trustee of a trust. They aren't entitled to diplomatic assistance. There are many fraudulent legal movements such as the &quot;sovereign citizen movement&quot; (and the Moorish Sovereign Citizens) that assert that citizenship is voluntary and that just by disavowing it in some official feeling way, they can be exempt from taxes, court jurisdiction, and/or other laws. This is false and people who act on this fraudulent misinformation often suffer serious legal consequences as a result.
(EU) 2016/679 (GDPR) is available in 24 languages. It wouldn't be practical for everyone communicating with EU citizens to be obliged to translate to all of them. Article 12 in Chapter 3 section 1 specifies : The controller shall take appropriate measures to provide any information referred to in Articles 13 and 14 and any communication under Articles 15 to 22 and 34 relating to processing to the data subject in a concise, transparent, intelligible and easily accessible form, using clear and plain language If your application is available only in Ukranian and only people who understand Ukranian will be able to use it, your policies and responses to customer enquiries should also be in Ukrainian - but in a form that's "concise, transparent and easily accessible".
In summary: Statute law allows Ireland to revoke your naturalisation on the grounds of acquiring another citizenship. But this law has recently been found unconstitutional. In practice, the government does not do this anyway. In the case of the UK, it is particularly unlikely. As an Irish citizen, there is no particular reason to pursue UK naturalisation. The law As of now, the possibility deprivation of Irish nationality for any reason is unclear, because of a ruling of the Supreme Court (Damache v Minister for Justice [2020] IESC 63) that declared the statute allowing for this to be unconstitutional. That was because the law (section 19 of the Irish Nationality and Citizenship Act 1956) did not provide enough procedural safeguards. The Minister would initiate the process and make the final decision after expert advice, but was not an &quot;independent and impartial decision-maker&quot;. It is now for the legislature to replace section 19 so as to cure the defect. Under section 19, the grounds for revoking a certificate of naturalisation include: (b) that the person to whom it was granted has, by any overt act, shown himself to have failed in his duty of fidelity to the nation and loyalty to the State and (e) that the person to whom it is granted has by any voluntary act, other than marriage or entry into a civil partnership, acquired another citizenship. The issue in Damache was (b) following the appellant's conviction for terrorism offences in the United States. Regarding (e), it would seem on its face that acquiring UK nationality might trigger the possibility of revocation. However, in the scenario envisaged, that would leave you without any EU nationality, and in the Tjebbes case of 2019 (ECLI:EU:C:2019:189) the European Court of Justice found that such deprivation would only be possible after consideration of the specific consequences for the person concerned and their family. This point was not reached in Damache but would also tend to rule out any &quot;automatic&quot; loss of nationality; it would have to be the result of some longer and more involved process. Whatever replaces section 19 would have to be of this kind. Special considerations also apply if loss of Irish nationality would leave you stateless, but that is not the issue in question. The policy Aside from cases of immigration fraud and terrorism, the State has rarely initiated processes under section 19. In fact, official guidance on immigration and nationality admits a policy of dual nationality being allowed. For the United Kingdom, there are many people who are dual British and Irish nationals. The understanding between the governments with respect to the Common Travel Area, the Good Friday Agreement, and the general historic situation, would make it very unlikely that Ireland would treat acquisition of British nationality as a problem. The British-Irish Agreement of 1998 includes that both governments respect the &quot;right to hold both British and Irish citizenship&quot; for the people of Northern Ireland. Even if you are not a person of Northern Ireland, any action by the government of Ireland that would be seen as potentially touching on this right is politically untenable. Irish citizens have full rights in the UK anyway Under UK law, an Irish citizen can enter without a visa, live there as long as they want, get a job, claim benefits, vote in elections, be elected as an MP, and do everything that a UK citizen can normally do. There may be a vanishingly few exceptions for national security jobs. Because of this, there isn't much reason why being naturalised in the UK would be worthwhile. You could do so for sentimental reasons but as far as the UK's concerned, you already hold a status that's just as good. Extra note: UK honours (In response to a comment below.) The British Crown does grant honours, including knighthoods, to non-UK citizens and dual/multiple citizens, in some circumstances. It depends on whether the other nationality has King Charles III as head of state, and the attitude of the foreign government. Therefore, Canadians do not get knighthoods (Charles is King but the Canadian government would rather not), Belizians do (Charles is King and the government is fine with it), and Americans can get it as an honorary award that does not come with the Sir/Dame title. For Ireland, Terry Wogan is an example of how this works. He was an Irish citizen who lived and worked in the UK for many years. In order to receive a British knighthood, he had to take up British citizenship (which was granted on an expedited basis), becoming Sir Terry. On the other hand, Bob Geldof is an Irish citizen (only) who holds an honorary British KBE, and is not formally entitled to be Sir Bob - much like American recipients such as Rudy Guiliani. The Irish government does not object to either possibility, although some individuals do. An American-Irish-British triple citizen would be able to receive a UK knighthood and use the title Sir, assuming that the British government was willing to grant it, and unless there were some foreign legal blocker (e.g. the U.S. government does not allow federal officeholders to receive overseas decorations).