9.—(1) Two or more persons who are not qualified under paragraph 6 may act as auditors of a trade union or employers' association in respect of any accounting period of that union or association if—N.I.
(a)its receipts and payments in respect of its last preceding accounting period did not in the aggregate exceed £5,000;
(b)the number of its members at the end of its last preceding accounting period did not exceed 500; and
(c)the value of its assets at the end of its last preceding accounting period did not in the aggregate exceed £5,000.
(2) Where by virtue of sub-paragraph (1) persons who are not qualified under paragraph 6 act as auditors in respect of any accounting period of a trade union or employers' association, the Certification Officer may at any time (whether during that period or after it comes to an end) direct the trade union or employers' association to appoint a person who is so qualified to audit its accounts for that period.
(3) Regulations may—
(a)substitute for any sum or number for the time being specified in sub-paragraph (1) such sum or number as may be specified in the regulations; and
(b)prescribe what receipts and payments shall be taken into account for the purposes of that sub-paragraph.