4(1)The Welsh Ministers may by regulations make provision with respect to—
(a)the qualifications for and the tenure of office of the chairman and directors of an NHS trust (including the circumstances in which they cease to hold, or may be removed from, office or may be suspended from performing the functions of the office),
(b)the persons by whom the directors and any of the officers must be appointed and the manner of their appointment,
(c)the maximum and minimum numbers of the directors,
(d)the circumstances in which a person who is not an employee of the NHS trust is nevertheless, on appointment as a director, to be regarded as an executive rather than a non-executive director,
(e)the proceedings of the NHS trust (including the validation of proceedings in the event of a vacancy or defect in appointment), and
(f)the appointment, constitution and exercise of functions by committees and sub-committees of the NHS trust (whether or not consisting of or including any members of the board).
(2)Regulations under sub-paragraph (1) may, in particular, make provision to deal with cases where the post of any officer of an NHS trust is held jointly by two or more persons or where the functions of such an officer are in any other way performed by more than one person.