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. Smoking and parties are prohibited in the apartments. When checking in, guests must provide passport information and make a refundable deposit, which is returned subject to compliance with the rules of residence and the return of the keys upon departure.