The purpose of clause 2 is to address the issue of duplicate publications, which was raised on Second Reading. It provides that it is not necessary to deposit a new edition of a work if it is substantially the same as one already published in that medium. Secondary legislation would detail the circumstances in which a work was considered substantially the same as a previously published work, and determine the medium of deposit where the same work was published in different media. However, it is thought that print will remain, as now, the preferred medium.