The powers of the General Synod under the preceding provisions of this Measure shall be so exercised as to ensure that—
(a)no person shall, unless he has been episcopally ordained priest in a Church whose Orders are recognised and accepted by the Church of England, preside at the Holy Communion according to the use of the Church of England, and
(b)no person shall, unless he is a clerk in Holy Orders of the Church of England, solemnise a marriage according to the rites of the Church of England.