16 U.S.C. § 831h: Recreational access

primarily designed and used for human habitation or occupation; and not primarily designed or used for navigation or transportation on water. the floating cabin is maintained by the owner to reasonable health, safety, and environmental standards, as required by the Board; the Corporation has authorized the use of recreational vessels on the waters; and the floating cabin was located on waters under the jurisdiction of the Corporation as of December 16, 2016 . The Board may levy fees on the owner of a floating cabin on waters under the jurisdiction of the Corporation for the purpose of ensuring compliance with subsection (b) if the fees are necessary and reasonable for such purpose. in the case of a floating cabin that was granted a permit by the Corporation before December 16, 2016 , for a period of 15 years beginning on such date; and in the case of a floating cabin not granted a permit by the Corporation before December 16, 2016 , for a period of 5 years beginning on such date; and the floating cabin meets the requirements of subsection (b); and the owner of the floating cabin has paid any fee assessed pursuant to subsection (c). Nothing in this subsection restricts the ability of the Corporation to enforce reasonable health, safety, or environmental standards. This section applies only to floating cabins located on waters under the jurisdiction of the Corporation. The Corporation may establish regulations to prevent the construction of new floating cabins.