The amendment would, in fact, eliminate a reference to proposed clause 79.12, in line 6, which concerns the authority of the Speaker of the House of Commons and of the Senate. In proposed clause 79.11, there is a reference to proposed clause 79.12. The purpose of the amendment is quite simply to delete that reference, which as you know indicates that the parliamentary budget officer is under the stewardship of the Speakers of the two Houses.
On May 29th, 2017. See this statement in context.