16.1 Except as otherwise expressly provided, any dispute concerning any matter referred to in this Section 4 (High Value Changes) may be referred by ei6ther party to the Dispute Resolution Procedure.
16.2 The Authority shall not be entitled to approve a High Value Change Proposal or a High Value Change Stage 2 Submission that is the subject of a dispute until the dispute has been determined.
16.3 If the Authority rejects a High Value Change Stage 2 Submission pursuant to the provisions of paragraph 8.2.2(a) of this Section 4, Sub-hubco shall be entitled to refer the matter for consideration under the Dispute Resolution Procedure within ten (10) Business Days after receiving written notice of the Authority's decision.
16.4 If, following a referral to the Dispute Resolution Procedure, it is agreed or determined:
16.4.1 that the High Value Change rejected by the Authority pursuant to paragraph 8.2.2(a) of this Section 4 met the Approval Criteria the Authority shall either:
(a) declare that the relevant High Value Change has received Stage 2 Approval and that High Value Change shall proceed; or
(b) declare that its rejection of the relevant High Value Change be treated as an improper rejection and that the provisions of paragraph 8.5 of this Section 4 (High Value Changes) shall apply
16.4.2 the High Value Change did not meet the Approval Criteria, save in one of the respects referred to in paragraphs 8.2.2(b)(i) or 8.2.2(b)(ii) the provisions of paragraph 8.3 of this Section 4 (High Value Changes) shall apply.