A Heritage Fleet is a collection of historic vehicles or vessels, representing a record of transport heritage. It may comprise to maritime vessels, aircraft, or other road or rail vehicles. Heritage fleets may be retained by private collectors, museums, or the companies that originally operated the vehicles, passing them to the heritage fleet on retirement. The vehicles in heritage fleets may undergoe vehicle restoration to various degrees to bring them back to their past operating condition, after which they may then be exhibited as show vehicles, or used as vehicles for hire.