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. An electronic contract is signed upon arrival. A deposit is provided. The deposit is refunded before 10:00 PM on the day of departure after the final cleaning. The deposit amount can be increased depending on the number of guests, as well as on weekends and holidays. It is forbidden to stay with animals, to hold parties, smoking in the flat, disturbing the peace of neighbors. Guests over the age of 21 are allowed to check into the accommodation facility in accordance with the agreement that is concluded upon check-in.