(8)To be authorised as ACHs, clearing houses have to fulfil specific requirements set out in the SFA and in the SFA Regulations. MAS may impose conditions or restrictions for the authorisation of ACHs and may at any time add or vary or revoke any condition or restriction imposed on them. ACHs have to operate clearing facilities safely and effectively, and they have to manage prudently the risks associated with their business and operations. They also must have sufficient financial, human and system resources.