I'd like to mention one other matter that I understand the select committee considered in some detail. Under clause 24, the commission needs to approve substantive changes to an operator's network rules. The select committee considered the practical implications of this requirement in the case of Visa and MasterCard networks, whose rules are extremely complex and not confined just to the New Zealand market. In the end, I understand the committee was reassured by a few observations. Whether the rules in a particular designated network are subject to this approval requirement is entirely at the discretion of the commission. I note the following: the commission must exercise this discretion in accordance with the purpose of the bill, the principles in clause 4, and the criteria in clause 25. In practice, I expect the commission will be selective in how it makes use of directions under clause 24. Before making any such direction, the commission is required to publish its proposal and consult with affected parties. This will help it to identify any genuine practical issues.