Amendment of First Mortgage Bonds or the Mortgage Indenture. The Trustee shall, without the consent of or notice to the registered owners of the Bonds, consent to any amendment, change or modification of the First Mortgage Bonds or the Mortgage Indenture as may be required or permitted (i) by the provisions of the Loan Agreement, the First Mortgage Bonds, the Mortgage Indenture or this Indenture, (ii) for the purpose of curing any formal ambiguity, inconsistency, defect or omission, (iii) in connection with any other change therein which is not materially adverse to the registered owners of the Bonds, (iv) to secure or maintain ratings on the Bonds from each Rating Agency, which changes will not restrict, limit or reduce the obligation of the Authority to pay the principal of and premium, if any, and interest on the Bonds as provided herein, or otherwise materially adversely affect the owners hereunder, (v) to add to the covenants and agreements of the Borrower contained in any document, other covenants or agreements thereafter to be observed, or to assign or pledge additional security for any of the Bonds, or to surrender any right or power reserved or conferred upon the Authority or the Borrower, and (vi) to provide for any additional procedures, covenants or agreements necessary to maintain the Tax‑exempt status of the interest on the Bonds, (vii) to modify, alter, amend or supplement the First Mortgage Bonds or the Mortgage Indenture in any other respect, if the effective date of such supplement or amendment is a date on which all of the Bonds affected thereby are subject to mandatory purchase and are so purchased. Notwithstanding the foregoing and without limiting the generality of the foregoing, the Trustee shall, without the consent of or notice to the Authority or the Bondholders, consent to any and all amendments, changes and modifications of the Mortgage Indenture requested in writing by the Borrower that affect any provision of the Mortgage Indenture that by its terms is effective only so long as certain series of bonds thereunder heretofore or hereafter issued (other than any series of bonds thereunder delivered to the Authority or Trustee pursuant to the Loan Agreement) are outstanding under the Mortgage Indenture. Except as described in the immediately two preceding paragraphs, the Trustee shall not consent to any other amendment, change or modification of the First Mortgage Bonds or the Mortgage Indenture without notice to and the consent of the registered owners of not less than a majority in aggrega...
