50 C.F.R. § 25.52 Designation.
Title 50 - Wildlife and Fisheries
To be designated as an “Entrance Fee Area”, a unit of the National Wildlife Refuge System must be found to demonstrate that: (a) The level of visitation for recreational purposes is high enough to justify the collection of fees for admission permits for economic reasons; (b) There is a practical mechanism in existence for implementing and operating a system of collecting fees for admission permits; and (c) Imposition of a fee for admission permits is not likely to result in undue economic hardship for a significant number of visitors to the unit.
Title 50: Wildlife and Fisheries
PART 25—ADMINISTRATIVE PROVISIONS
Subpart E—Fees and Charges
§ 25.52 Designation.