1.1 If the Authority requires a High Value Change it must serve an Authority Change Notice on Project Co in accordance with paragraph 2 of this Section 4 (High Value Changes).
1.2 Project Co shall be entitled to refuse a High Value Change that:
1.2.1 requires the Works and/or the Services to be performed in a way that infringes any law or is inconsistent with Good Industry Practice;
1.2.2 would cause any Necessary Consent to be revoked (or would require a new consent to be obtained to implement the relevant change in the Works and/or the Services which, after using reasonable efforts, Project Co has been unable to obtain);
1.2.3 would materially and adversely affect Project Co's ability to deliver the Works and/or the Services (except those Works and/or Services which have been specified as requiring to be amended in the High Value Change Notice) in a manner not compensated pursuant to this Section 4 (High Value Changes);
1.2.4 would materially and adversely affect the health and safety of any person;
1.2.5 would, if implemented, materially and adversely change the nature of the Project (including its risk profile);
1.2.6 is the subject of a High Value Change Notice that cannot reasonably be complied with;
1.2.7 the Authority does not have the legal power or capacity to require implementation of; or
1.2.8 would if implemented adversely affect the enforceability or priority of the security held by or on behalf of the existing Senior Lenders.