50 CFR 26.21 : Wildlife And Fisheries (§ 1.1 To Parts 698-699) — (§ 18.1 To Parts 101-199) — United States Fish And Wildlife Service, Department Of The Interior (Continued) (§ 18.1 To Parts 101-199) — The National Wildlife Refuge System (§ 25.11 To § 38.17) — Public Entry And Use (§ 26.11 To § 26.41) — Public Entry (§ 26.21 To § 26.27) — General trespass provision.

(a) No person shall trespass, including but not limited to entering, occupying, using, or being upon, any national wildlife refuge, except as specifically authorized in this subchapter C or in other applicable Federal regulations.

(b) No unconfined domestic animals, including but not limited to dogs, hogs, cats, horses, sheep and cattle, shall be permitted to enter upon any national wildlife refuge or to roam at large upon such an area, except as specifically authorized under the provisions of § 26.34, § 27.91 or § 29.2 of this subchapter C.