Novatroopers were Imperial stormtroopers, but with tougher black armor that had yellow stripes. They served as an honor guard and had elite training. They were seen guarding Imperial storehouses such as the one on Utapau, and were also stationed on historically important Imperial worlds like Naboo, and were also used in siege operations and guarding captured enemy starships.
Several battalions of Novatroopers were present during the Invasion of Ord Mantell. They took over a large Rebel emplacement, and took only a few casualties.