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 security deposit is refunded after the flat is inspected on the day of departure, provided there are no violations. Smoking is prohibited in the flat. Noisy parties are prohibited. When checking in with children, guests are required to monitor the safety of their belongings and the condition of the flat. Night check-ins and check-outs are possible and must be arranged in advance. Documents for business travelers are available upon request.