20.—(1) If the Department by regulations so provides, such of the functions of the Department under Articles 17 to 19 as are specified in, or determined in accordance with, the regulations shall become functions of a Health and Social Services Board with effect from such date as may be prescribed.
(2) Regulations under this Article shall make provision for determining the Health and Social Services Board which is to exercise any of the functions concerned in relation to the members of any existing recognised fund-holding practice and in relation to any medical practitioners wishing to apply for recognition.
(3) Regulations under this Article may make such incidental and consequential modifications of the principal Order and of Articles 17 to 19 as appear to the Department to be necessary or expedient in consequence of the transfer of functions effected by the regulations.