The requirements for documents needed at check-in depend on the type of accommodation and the applicable regulations. For hotels and other accommodation facilities, a Russian passport, an international passport, or a driver’s license may be accepted. For apartments, serviced apartments, and other properties where check-in or contract conclusion is carried out according to the rules of a specific property, the required documents are determined by the property itself. When booking, it is necessary to specify the full name and date of birth of the guests. When checking in to the hotel, all guests must have a certificate of epidemiological environment, issued 72 hours before arrival.