; and (B) in subclause (I) (as so designated), in the second sentence, by striking Amounts and inserting the following: (II) Fees for the S ystem Amounts ; and (3) by adding at the end the following: (iv) Sunset of N ational P ark S ervice L egacy R estoration F und fee The Secretary may not collect the fee described in clause (i)(III) for a travel authorization in a fiscal year beginning after September 30, 2029. . (d) Clerical amendment The table of sections for chapter 1049 of title 54, United States Code, is amended by adding at the end the following: 104910. National Park Service Legacy Restoration Fund. . 3. GAO study Not later than 2 years after the date of enactment of this Act, the Comptroller General of the United States shall— (1) conduct a study with respect to the implementation of the National Park Service Legacy Restoration Fund under section 104910 of title 54, United States Code (as added by section 2(a)), including whether the Director of the National Park Service is, with respect to projects carried out using amounts from that Fund— (A) properly estimating the cost for those projects; (B) adhering to time schedules and cost projections for those projects; (C) properly prioritizing deferred maintenance projects; and (D) properly moving completed projects off of the high-priority deferred maintenance list of the National Park Service in a timely manner; and (2) submit to Congress a report that describes the results of the study under paragraph (1).