Commander Grand Cross (KmstkNO) – Wears the badge on a collar (chain) or on a sash over the right shoulder, plus the star on the left chest; Commander 1st Class (KNO1kl) – Wears the badge on a necklet, plus the star on the left chest; Commander (KNO) – Wears the badge on a necklet; Knight 1st Class (RNO1kl/LNO1kl[note]) – Wears the badge on a ribbon on the left chest; Knight (RNO/LNO[note]) – Wears the badge on a ribbon on the left chest.