Paragraph 19
An Operator’s rules and practices—
must bind system-members and participating issuers—
so as to ensure the efficient processing of transfers of title to uncertificated units of a security in response to Operator-instructions; and
as to the action to be taken where transfer of title in response to an Operator-instruction cannot be effected;
must make provision for a participating issuer to cease to participate in respect of a participating security so as—
to minimise so far as practicable any disruption to system-members in respect of their ability to transfer the relevant security; and
to provide the participating issuer with any relevant information held by the Operator relating to uncertificated units of the relevant security held by system-members;
must make provision for the orderly termination of participation by system-members and system-participants whose participation is disruptive to other system-members or system-participants or to participating issuers; and
if they make provision for the designation of a subsidiary undertaking as a relevant nominee, must require that the relevant nominee maintain adequate records of—
the names of the persons who have an interest in the securities it holds; and
the nature and extent of their interests.