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. Inviting outside guests is not allowed. Violation of accommodation rules may result in eviction without a refund. A passport and a deposit are required at check-in. Smoking is permitted only on the balcony. For an additional fee, reporting documents are provided, including a receipt with a QR code and non-cash payment options for organizations. Video surveillance is conducted outside the flat.