66 S T A T. ]
PUBLIC LAW 4 1 4 - J U N E 27, 1952 REVOCATION Or APPROVAL OF PETITIONS
SEC. 206. The Attorney General may, at any time, for what he deems to be good and sufficient cause, revoke the approval of any petition approved by him under section 204, section 205, or section 214(c) of this title. Such revocation shall be effective as of the date of approval of any such petition. I n no case, however, shall such revocation have effect unless there is mailed to the petitioner's last known address a notice of the revocation and unless notice of the revocation is communicated through the Secretary of State to the beneficiary of the petition before such beneficiary commences his journey to the United States. If notice of revocation is not so given, and the beneficiary applies for admission to the United States, his admissibility shall be determined in the manner provided for by sections 235 and 236. '
UNUSED QUOTA IMMIGRANT VISAS
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SEC. 207. If a quota immigrant having an immigrant visa is excluded from admission to the United States and deported, or does not apply for admission to the United States before the expiration of the validity of the immigrant visa, or if an alien having an immigrant visa issued to him as a quota immigrant is found not to be a quota immigrant, no immigrant visa shall be issued in lieu thereof to any other immigrant. CHAPTER 2—QUALIFICATIONS FOR ADMISSION OF ALIENS; TRAVEL CONTROL OF CITIZENS AND ALIENS DOCUMENTARY REQUIREMENTS
SEC. 211. (a) No immigrant shall be admitted into the United States unless at the time of application for admission he (1) has a valid unexpired immigrant visa or was born subsequent to the issuance of such immigrant visa of the accompanying parent, (2) is properly chargeable to the quota specified in the immigrant visa, (3) is a nonquota immigrant if specified as such in the immigrant visa, (4) is of the proper status under the quota specified in the immigrant visa, and (5) is otherwise admissible under this Act. (b) Notwithstanding the provisions of section 212(a) (20) of this Act, in such cases or in such classes of cases and under such conditions as may be by regulations prescribed, otherwise admissible aliens lawfully admitted for permanent residence who depart from the United States temporarily may be readmitted to the United States by the Attorney General in his discretion without being required to obtain a passport, immigrant visa, reentry permit or other documentation. (c) The Attorney General may in his discretion, subject to subsection (d), admit to the United States any otherwise admissible immigrant not admissible under clause (2), (3), or (4) of subsection (a), if satisfied that such inadmissibility was not known to and could not have been ascertained by the exercise of reasonable diligence by, such immigrant prior to the departure of the vessel or aircraft from the last port outside the United States and outside foreign contiguous territory, or, in the case of an immigrant coming from foreign contiguous territory, prior to the application of the immigrant for admission. (d) No quota immigrant within clause (2) or (3) of subsection (a) shall be admitted under subsection (c) if the entire number of immigrant visas which may be issued to quota immigrants under the same quota for the fiscal year, or the next fiscal year, has already been issued.
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