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. Guests are settled by the host himself, so guests need to be contacted in advance before check-in and agree on the check-in time in order to have time to arrive on time and receive the keys. The contact phone number is indicated in the booking confirmation.