Section 6963 - Emergency procedures and contract change orders(a) All of the provisions of this subchapter may be waived pursuant to § 6907 of this title.(b) The awarding agency may issue a change order to the public works contract setting forth any change, addition or extra work required to be undertaken by the contractor. Such changes may be necessitated by changed situations, unforeseen conditions, strikes and acts of God. Change orders shall be issued for all changes or extra work determined to be necessary and requested by the agency, but not specified in the contract or its plans and specifications. The change order shall not: (1) Be subject to the competitive bidding requirements of this subchapter; or(2) Invalidate the contract, provided that such change is within the scope of the contract as set forth in the standard specifications, special provisions or similar publication of the agency; or(3) Be subject to the requirement for lifecycle costing analysis as described in §§ 6902 and 6909A(a) of this title. 70 Del. Laws, c. 601, § 9; 74 Del. Laws, c. 419, § 9.;