Not under command (NUC) Created OnFebruary 8, 2018byCult of Sea You are here: Glossary N Not under command (NUC) < Back to Glossary IndexSaid of a vessel when unable to maneuver. (abbr. NUC): a vessel which through exceptional circumstances is unable to manoeuvre as required by the COLREGs Related:COA (Contract of Affreightment)Arrived shipAct of GodHog (Hogging)Ballast bonus (BB)Overtaking