Retirement benefit entitlement: members choose pension or contributory provident fund, with limited added service credit for late recruits. Rule 12 provides that members who held a permanent pensionable post at appointment are eligible for pension under applicable pension rules; others receive Contributory Provident Fund benefits but may elect for pensionary benefits within specified time limits. Elections must be sent to the Accounts Officer with a copy to the Secretary and are final; failure to communicate results in deemed continuation of CPF subscription with no pension. A concession allows certain late recruits from legal or accounting professions to add a limited period to qualifying service for superannuation pension, subject to minimum actual service.