Save in respect of the approved plans specified in requirement 3(1), the undertaker may submit to the relevant planning authority for approval any amendments to the parameters in Tables 2 and 3 of requirement 3(2), plans, drawings, documents, details, schemes, statements or strategies which require approval by the relevant planning authority pursuant to any requirement (the “Approved Plans, Details or Schemes”). Following any such approval by the relevant planning authority the Approved Plans, Details or Schemes are to be taken to include the amendments approved pursuant to this sub-paragraph(1).

Approval under paragraph 19(1) must not be given except where it has been demonstrated to the satisfaction of the relevant planning authority that the subject-matter of the approval sought is unlikely to give rise to any materially new or materially different environmental effects in comparison with the authorised development as approved (as identified in the environmental statement).