According to the standard system of ship-classifications, a frigate was a ship with a crew of between 200 and 1,000 beings, and an approximate size of 200-400m long, defined by the maximum size of smaller system patrol craft and the minimum size of larger cruisers. This was the definition that was officially used by the Old Republic, the Galactic Empire, the Alliance to Restore the Republic, and the New Republic, although formal exceptions were made for ships like the heavily-armed 350m Carrack-class light cruiser, and many other classification systems were used simultaneously throughout the Galaxy.