The Republican Guard of the National Gendarmerie is the last unit to wear dress uniform as service uniform, as guard of honour detachments are required to wear it while on duty. The cavalry regiment wear a 19th-century dragoon uniform, with metal helmet and white riding trousers, while the infantry regiments use a high-collared traditional gendarmerie uniform. The officer cadets and the staff of école des officiers de la gendarmerie nationale also use uniforms whose styling dates back to the 19th century.