5. Common seal

The common seal of the Commission shall bear such device as the Commission may approve and such seal may, from time to time, be broken, changed, altered and made anew as the Commission thinks fit.

The common seal shall be kept in the custody of the Chairman or any other person authorized by the Commission, and shall be authenticated by either the Chairman or by such authorized person or by any officer authorized by the Chairman in writing.

All deeds, documents and other instruments purporting to be sealed with the common seal and authenticated in accordance with subsection (2) shall, until the contrary is proved, be deemed to have been validly executed.

The common seal of the Commission shall be officially and judicially noticed.