83.Section 48 places the Welsh Ministers under a duty to review the operation of the Measure for the purposes of publishing one or more reports. A report must be published within four years of the commencement of the principal provisions of Part 1, and also of Parts 2, and 3, and 4 of the Measure. A review preceding publication of a report may be commenced at any time, provided the Welsh Ministers are satisfied that sufficient time has passed since the relevant Part or provision of the Measure has been commenced. A copy of a report must be laid before the National Assembly for Wales.