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 is carried out upon presentation of a Russian passport or a Russian driver’s license. If one of these documents is not provided, check-in may be refused. Any type of smoking in the flat or on the balcony is strictly prohibited. Pets are not allowed. Additional guests may stay in the flat only if a separate payment for them was made at check-in. In case of violation of the house rules, the security deposit will not be refunded.