A Thaereian customs ship was a model of starship. During the time of the Clone Wars, a Thaereian customs ship was used by the Cularin Armed Forces to defend the orbit of the planet Almas, in the Cularin system. Circa 19 BBY, the Dark Jedi boarded the customs ship and killed all of the crew, replacing them with two astromech droids and two assassin droids that were loyal to him. Under Ezzar's command, the customs ship subsequently flew into the Almas atmosphere and participated in an attack on the Almas Academy, a Jedi academy that was situated on the world.