What are the requirements for American immigrants to use re-entry permits?

So, what are the requirements for applying for re-entry permit in the United States? Will applying for a re-entry permit affect the validity of the green card? What is the impact of applying for re-entry permit on future naturalization? Re-entry permit is a document that allows immigrants with green cards or conditional green cards to return to the United States after leaving the United States for a period of time without going to the American embassy or consulate to apply for a re-entry visa. If the green card holder knows that he will stay outside the United States for more than one year before leaving the United States, he can apply for a "re-entry permit" before leaving the United States. On the contrary, if you stay outside the United States for less than one year, you can re-enter the United States directly with a green card without applying for a re-entry permit. After applying for re-entry permit in the United States, the US Immigration Bureau will inform you in writing when to go to the local application support center for fingerprint identification. Generally speaking, the re-entry permit allows the holder to stay abroad for no more than two years from the date of issuance. For applicants with conditional green cards, the calculation method of the validity period of re-entry permit to the United States is slightly different. The validity period of two years' overseas residence is calculated from the date of issuing the re-entry permit or the date of applying for cancellation of conditions, but the earliest date shall prevail. Please note that staying abroad for two years is the longest period of validity of the US re-entry permit, and no extension is allowed. Since the application for re-entry permit must be made in the United States, for green card holders who have already stayed outside the United States, if you intend to stay outside the United States for more than one year without applying for re-entry permit, the US Immigration Service will consider you to give up your permanent resident or conditional resident status. It should be noted that the re-entry permit itself will not prevent the entry-exit port staff from discovering and judging that you have given up your permanent resident status, but at least it can make customs officials judge whether you have given up your permanent resident status without considering the time you were detained overseas during the validity period of the re-entry permit. In addition, the entry-exit staff may ask you about your time outside the United States when you enter the country, so as to judge whether your activities abroad are related to enrollment, or whether the re-entry permit was obtained through fraud or false statements. It can be seen that the re-entry permit of the United States is not foolproof. If people with US re-entry permits are found overstaying overseas, they may also be refused entry. Related reading: a guide for beginners studying in the United States; Introduction of visa-free programs in the United States; The American bill has caused another visa storm; Direct access to the services of the Master of Heaven; Click to enter >>& gt& gt. Is there any problem?