; (D) be sufficient to ensure the completion of the reclamation plan if the work had to be performed by the regulatory authority in the event of bond forfeiture; and (E) be set at a level consistent with the rebuttable presumption that the mine will close 5 years after the permit is issued. (5) In setting the amount of the bond under paragraph (4), the regulatory authority shall consider— (A) the impact of a reasonably expected level of inflation over the time period that the reclamation is likely to occur; (B) the impact of an unplanned or early mine closure on the cost of reclamation, including whether there will be sufficient spoil available to reclaim the mine; and (C) any additional costs likely to be incurred as a result of the regulatory authority undertaking reclamation operations upon bond forfeiture. (6) The amount of a bond for the entire area under 1 permit may not be less than $52,593, annually adjusted for inflation in accordance with the Consumer Price Index for all Urban Consumers, as published by the Bureau of Labor Statistics. ; and (2) in subsection (e), to read as follows: (e) The amount of the bond or deposit required and the terms of each acceptance of the bond of the applicant shall be adjusted by the regulatory authority— (1) from time to time— (A) as affected land acreages are increased or decreased; or (B) where the cost of future reclamation changes due to changing circumstances, including— (i) long-term water pollution discharge; (ii) coal market conditions; (iii) unanticipated mine closures; and (iv) changes in the reclamation plan; (2) whenever a permit is renewed; and (3) whenever a permit is transferred to a new operator. . (b) Revision of permits Section 511 of the Surface Mining Control and Reclamation Act of 1977 ( 30 U.S.C. 1261 ) is amended— (1) by redesignating subsection (c) as subsection (d)