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. Check-in takes place without contact. Guests must contact the property representative in advance to obtain check-in information. Check-in with the received information is possible around the clock, by prior arrangement. Contact information is provided in the booking confirmation. If it is not possible to contact the accommodation facility by phone number, the guest can send a question to WhatsApp.