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. The apartment offers 24-hour self-service check-in, which must be arranged in advance. To receive check-in instructions, guests must contact the apartment using the number on their voucher at least 24 hours prior to arrival. Calls are accepted from 09:00 AM to 10:00 PM. A deposit is required upon check-in.