16 U.S. Code § 6209 - Right of second appraisal
A cabin owner shall submit to the Secretary any request for reconsideration of the base cabin user fee, based on the results of the second appraisal, not later than 60 days after the receipt of the report for the second appraisal.
Pub. L. 113–291, div. B, title XXX, § 3024(k), Dec. 19, 2014, 128 Stat. 3766, provided that, effective on the date of the assessment of annual permit fees in accordance with section 6214(f) of this title (as certified to Congress by the Secretary of Agriculture), this section is repealed.