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. Pet Policy: Dog weights up to 5 kg and ages 2 years and older are permitted. Dogs must be groomed before arrival. Dogs are not allowed on sofas or beds in the room. The dog surcharge is 25% of the room rate per pet. If there are two pets, the surcharge is 50% of the room rate (25% for each pet). Cats are not allowed.