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. According to the agreement concluded upon check-in, residence in the property is permitted only to persons over 21 years of age. The deposit amount can vary from RUB 2000.00 to 5000.00 depending on various factors.