8 U.S.C. § 229 to 231
Section 229, acts May 19, 1921, ch. 8, 42 Stat. 5; May 26, 1924, ch. 190, §30, 43 Stat. 169, related to imposition and enforcement of penalties under act May 19, 1921.
Section 230, Joint Res. Oct. 16, 1918, ch. 190, 40 Stat. 1014, related to alien residents conscripted or volunteering for service during World War I.
Section 231, act May 26, 1926, ch. 400, 44 Stat. 657, related to admission into Puerto Rico of certain resident Spanish subjects.