The Medal "For Impeccable Service" was established in three classes. The first class was awarded for twenty years of excellent service, the second class for fifteen and the third class for ten. They were awarded sequentially from the third class to the first class to members of the military personnel of the Ministry of Defence of the USSR, of the Ministry of Internal Affairs of the USSR and to members of the Ministry for the Protection of Public Order. The Medal "For Impeccable Service" was worn on the left side of the chest and in the presence of other awards of the USSR, was located after them in sequential order from the first to the third class. If worn in the presence of Orders or medals of the Russian Federation, the latter have precedence.[2]