(16)MAS can issue directions, whether of a general or specific nature, for ensuring the safe and efficient operation of ACHs and, in particular, for ensuring compliance with obligations or requirements under the SFA or with the requirements prescribed by MAS which have to be incorporated in the ACHs' internal rules and procedures. The SFA provides for penalties where the ACH concerned does not comply with the directions issued by MAS. Regarding enforcement of ACHs' internal rules and procedures, MAS may apply to the High Court to issue an order requesting an ACH to comply with, observe, enforce or give effect to its internal rules and procedures. Finally, MAS may revoke the authorisation of ACHs in case of non-compliance with the requirements it prescribes, any condition or restriction imposed on authorisation, any direction issued by MAS under the SFA or any provision of the SFA, among others.