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. For business travelers, reporting documents are provided: receipts with a QR code, online cash register, contracts and certificates of services rendered; payment by bank account is also possible for organizations.