Section 393 of the Principal Act is amended, in subsection (2) -

(a) in paragraph (b), by the substitution of ''require,'' for ''require, and'',

(b) in paragraph (c), by the substitution of ''require, and'' for ''require.'', and

(c) by the insertion of the following paragraph after paragraph (c):

''(d) furnish the Authority with such copies of, or extracts from, those books and documents as the Authority may require, accompanied by a certificate of the statutory auditors, bearing their signatures, stating that the copies or extracts so furnished are a true copy of, or extract from, the original books or documents concerned.''.