18 U.S.C. § 4083

Penitentiary imprisonment; consent

Persons convicted of offenses against the United States or by courts-martial punishable by imprisonment for more than one year may be confined in any United States penitentiary. A sentence for an offense punishable by imprisonment for one year or less shall not be served in a penitentiary without the consent of the defendant.

( June 25, 1948, ch. 645 , 62 Stat. 850 ; Pub. L. 86–256 , Sept. 14, 1959 , 73 Stat. 518 .)