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. Early check-in and late check-out are possible by agreement. Round-the-clock check-in is carried out through an electronic lock. Dogs are allowed for an additional fee, but cats are not allowed. The flat is non-smoking, noisy parties are prohibited and guests are allowed to stay in excess of the specified number.