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 at a pre-agreed time. If it is necessary to check in earlier or later, guests need to clarify the possibility in advance. Upon check-in, guests must sign a rental agreement and present the original passport. The deposit is returned upon departure after checking the apartment.