The process approved by Government for the appointment of Civilian Drivers to Ministers and Ministers of State is set out in the Instructions to HR Managers – Ministerial Appointments for the 33rd Dáil that is published on gov.ie. Civilian Drivers are appointed on a temporary basis by the relevant Department for a period co-terminus with the relevant officeholder or for other stated reasons. This is reflected in the Contract of Employment that issues to Civilian Drivers, a template for which is included at Appendix 9 in the referenced Instructions to HR Managers.
It would be a matter for Government to initially consider the impacts of any prospective recommendation to vary the current Civilian Driver arrangements. I can confirm that these matters are under review.