16 U.S.C. § 6204
The Secretary shall ensure, to the maximum extent practicable, that the basis and procedure for calculating cabin user fees results in a fee for an authorization that reflects, in accordance with this chapter—
(Pub. L. 106–291, title VI, § 605, , 114 Stat. 1015.)
Pub. L. 113–291, div. B, title XXX, § 3024(k), , 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with section 6214(f) of this title (as certified to Congress by the Secretary of Agriculture), this section is repealed.