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the Base Rental Year. For the purposes hereof, the “Consumer Price Index” shall mean the Consumer Price Index, United States City Average, all items (1982 - 1984 = 100) or any successor thereto as promulgated by the Bureau of Labor Statistics of the United States Department of Labor. In the event that the Consumer Price Index ceases to use the 1982 - 1984 average of one hundred (100) as the basis of calculation, or if a substantial change is made in terms of particular items contained in the Consumer Price Index, then the Consumer Price Index shall be adjusted to the figure that would have been arrived at had the change in the manner of computing the Consumer Price Index in effect at the commencement of the term of this Lease not been affected. In the event the Consumer Price Index (or successor or substitute Consumer Price Index) is not available, a reliable governmental or other nonpartisan publication evaluating information theretofore used in determining the Consumer Price Index shall be used.
4.05 Late Payments. Tenant shall pay to Authority interest at the rate established from time-to-time by the Board of Authority Commissioners, but not more than one and one-half percent (1½%) per month, on any late payments commencing thirty (30) days after the amounts are due. To the extent permitted by law, Tenant agrees that acceptance of late payments by Authority shall not constitute a waiver of Tenant's default by Authority with respect to such overdue amount, nor prevent Authority from terminating this Lease for default beyond applicable cure periods in the payment of rentals, fees, or charges due to Authority pursuant to this Lease or from enforcing any other provisions, rights, or remedies granted herein, or conferred by law.
4.06 Surety. Tenant shall provide surety to the Authority equal to three (3) monthly
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