8 U.S.C. § 1230 : US Code - Section 1230: Records of admission

Search 8 U.S.C. § 1230 : US Code - Section 1230: Records of admission

(a) The Attorney General shall cause to be filed, as a record of
admission of each immigrant, the immigrant visa required by section
1201(e) of this title to be surrendered at the port of entry by the
arriving alien to an immigration officer.
(b) The Attorney General shall cause to be filed such record of
the admission into the United States of each immigrant admitted
under section 1181(b) of this title and of each nonimmigrant as the
Attorney General deems necessary for the enforcement of the
immigration laws.