Subject to the terms of Section 3.1, this Agreement shall become effective when it shall have been executed by the Borrowers and the Administrative Agents, and when the US Administrative Agent shall have, as to each Lender, either received a counterpart hereof executed by such Lender or been notified by such Lender that such Lender has executed it and thereafter shall be binding upon and inure to the benefit of the Borrowers, the Administrative Agents, and each Lender and their respective permitted successors and assigns, except that neither Borrower nor any other Credit Party shall have the right to assign its rights or delegate its duties under this Agreement or any other Credit Document or any interest in this Agreement or any other Credit Document without the prior written consent of each Lender, except as otherwise permitted by Section 6.6.