; and (B) can demonstrate that the claim holder and all related parties have performed assessment work required under section 2324 of the Revised Statutes ( 30 U.S.C. 28 ) to maintain the mining claims and sites held by the claim holder and all related parties for the assessment year ending on noon of September 1 of the calendar year in which payment of the maintenance fee was due. (6) Adjustment (A) In general Subject to subparagraph (B), beginning on the date that is 5 years after the date of enactment of this Act and every 5 years thereafter, the Secretary shall adjust the amount of maintenance fees required under paragraph (1) to reflect changes in the Consumer Price Index for all urban consumers published by the Department of Labor. (B) More frequent adjustments The Secretary may adjust the amount of the maintenance fees more frequently than specified in subparagraph (A) to reflect changes in the Consumer Price Index for all urban consumers published by the Department of Labor if the Secretary determines an adjustment to be reasonable. (C) Notice Not later than July 1 of any year in which an adjustment is made under this paragraph, the Secretary shall provide claim holders notice of the adjustment. (D) Application An adjustment under this paragraph shall apply beginning in the first calendar year after the calendar year in which the adjustment is made. (7) Applicable law The co-ownership provisions of section 2324 of the Revised Statutes ( 30 U.S.C. 28 ) shall remain in effect, except that the annual maintenance fee, as applicable, shall replace applicable assessment requirements and expenditures. (8) Use and occupancy of claims Timely performance of required assessment work or payment of the maintenance fee under this subsection satisfies any obligation the claim holder has under the pedis possessio doctrine for any claim properly located in accordance with the general mining laws and applicable State law. (b) Location fees (1) In general Subject to paragraph (2) and notwithstanding any other provision of