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 remotely. Guests must contact the hotelier at least 2 hours before arrival to receive instructions on how to check in. Contact information is provided on the booking confirmation. A contract is signed. Accommodation with pets requires prior approval. A maximum of 1 pet is allowed.