Home › CFR › Title 50 › Part 2550 CFR Part 25 — Administrative ProvisionsSubpart A — Introduction§ 25.11— Purpose of regulations.§ 25.12— What do these terms mean?§ 25.13— Other applicable laws.Subpart B — Administrative Provisions§ 25.21— When and how do we open and close areas of the National Wildlife Refuge System to public access and use or continue a use?§ 25.22— Lost and found articles.§ 25.23— Information collection requirements.§ 25.24— Drain tile setbacks.Subpart C — Public Notice§ 25.31— General provisions.Subpart D — Permits§ 25.41— Who issues refuge permits?§ 25.42— Permits required to be exhibited on request.§ 25.43— Who may terminate or revoke a permit and why?§ 25.44— How do we grant permits for easement area uses?§ 25.45— Appeals procedure.Subpart E — Fees and Charges§ 25.51— General provisions.§ 25.52— Designation.§ 25.53— Establishment of single visit entrance fees.§ 25.54— Posting and public notification.§ 25.55— Refuge admission permits.§ 25.56— Enforcement.§ 25.57— Exceptions and exemptions.Subpart F — Concessions§ 25.61— General provisions.Subpart G — Safety Regulations§ 25.71— Public safety.§ 25.72— Reporting of accidents.