There are two measures in here, two authorities. There's a directive-making authority, which is not a statutory instrument for the purpose of the Statutory Instruments Act, but the legislative amendments here are saying that it will nonetheless be gazetted exactly for that purpose. The second instrument is regulation, which would go through the full regulatory process, including pre-publication and final publication.
Evidence of meeting #14 for Finance in the 40th Parliament, 3rd Session. (The original version is on Parliament’s site, as are the minutes.) The winning word was positions.
A recording is available from Parliament.