Clause 90

for the issue of discharge books in such form and containing such particulars with respect to the holders thereof and such other particulars as may be prescribed by the regulations and for requiring such persons to apply for such discharge books;

for requiring the holders of discharge books to produce them to such persons and in such circumstances as may be prescribed by the regulations; and

for the surrender of discharge books in such circumstances as may be prescribed by the regulations,and any provision of the regulations having effect by virtue of paragraph (a) may be so framed as to apply to all such persons as are mentioned in that paragraph or any description of such persons and as to have effect subject to any exemptions for which provisions may be made by the regulations.