18 U.S.C. § 1793Section
§ 1793. Trespass on Bureau of Prisons reservations and land
Whoever, without lawful authority or permission, goes upon a reservation, land, or a facility of the Bureau of Prisons shall be fined under this title or imprisoned not more than six months, or both.
(Added Pub. L. 99–646, §64(a), Nov. 10, 1986, 100 Stat. 3614; amended Pub. L. 103–322, title XXXIII, §330016(1)(G), Sept. 13, 1994, 108 Stat. 2147.)