After receiving a Temporary Certificate of a Citizen of Ukraine, a Russian citizen begins collecting documents in order to withdraw from the citizenship of the Russian Federation.
Until February 24, 2022, this could be done through the Embassy of the Russian Federation regarding the withdrawal from the citizenship of the Russian Federation.
However, after February 24, 2022, the embassies and consulates of the Russian Federation on the territory of Ukraine are already closed, so it is not possible to submit documents.
When applying to the embassy of the Russian Federation, which is located in the Republic of Moldova or Poland, or in another country, along with all the documents for renunciation of the citizenship of the Russian Federation, the documents are not accepted, due to the lack of a document confirming my permanent residence in the Republic of Moldova.

The websites of Russian embassies in various countries indicate the need to have permanent residence in these countries in order to apply for renunciation of citizenship.
This circumstance does not depend on the person, so he does not have the opportunity to withdraw from foreign citizenship.
To the appeal to the migration service, she answers that, in accordance with paragraph 12 of Article 1 of the Law of Ukraine "On Citizenship of Ukraine", the obligation to terminate foreign citizenship is a written statement of a foreigner that, in the event of acquiring citizenship of Ukraine, he will cease citizenship (citizenship) of another state and, within two years from the moment he acquires citizenship of Ukraine, will submit a document on the termination of citizenship (citizenship) of another state.
Thus, it is the person who is obliged to terminate foreign citizenship and submit a document on the termination of foreign citizenship issued by the authorized body of the relevant state to the authorized body of Ukraine within two years from the date of acquisition of Ukrainian citizenship by him.
It is also noted that it is possible to obtain a passport of a citizen of Ukraine only if a document on the termination of foreign citizenship is submitted to the UGMS.
At the same time, according to paragraph 3 of the Rules for issuing and issuing a temporary certificate of a citizen of Ukraine, approved by the Decree of the Cabinet of Ministers of Ukraine dated July 17, 2003 No. 1111, a temporary certificate of a citizen of Ukraine is issued for up to 2 years in order to fulfill the obligation to terminate foreign citizenship.
Extension of the validity period of a temporary certificate of a citizen of Ukraine is not provided for by the legislation.
Reasons independent of a person for not receiving a document on the termination of foreign citizenship (nationality) are defined in paragraph thirteen of Article 1 of Law No. 2663-IV of 06/16/2005, No. 1941-IX of 12/14/2021.
The reason independent of the person for not receiving a document on the termination of foreign citizenship (citizenship), in the understanding of paragraph 1 of Article 1 of Law N 2235-III, is
• non-issuance to a person from whom the authorized bodies of the state of his citizenship (nationality) accepted a petition for the termination of foreign citizenship (nationality), by the authorized body of such state of a document on the termination of citizenship (nationality) of a person within the period established by the legislation of a foreign state (except for cases when the person was denied termination) or
• the absence in the legislation of a foreign state of a procedure for terminating its citizenship (nationality) at the initiative of a person or
• failure to implement such a procedure.
According to the Law of Ukraine "On Citizenship of Ukraine", the right to renounce foreign citizenship is a document in which a foreigner who has undertaken to terminate foreign citizenship and who has independent reasons for not receiving a document on the termination of foreign citizenship (citizenship) or foreign citizenships (citizenships), testifies to his refusal.