Commentary on provisions of the Act Part 3: Approvals: supplementary Non-material changes to approvals
Paragraph 21 enables a planning authority at the request of the nominated undertaker to make a non-material change to any approval it has previously given under Part 1. This is to allow changes which do not have material planning significance to be made without the necessity for the nominated undertaker to make a fresh request for approval. It is similar to the power available to planning authorities in respect of "normal" planning permissions in section 96A of the Town and Country Planning Act 1990.