8.—(1) The Regional Board or a committee may appoint a sub-committee to consider and report to the Regional Board or, as the case may be, the committee on any matter within the competence of the Regional Board or the committee.
(2) References in this Schedule to a sub-committee are to a sub-committee appointed under this paragraph.
(3) A sub-committee may include persons who are not members of the Regional Board or the committee which appoints the sub-committee.