8 U.S.C. § 1257 : US Code - Section 1257: Adjustment of status of certain resident aliens to nonimmigrant status; exceptions

Search 8 U.S.C. § 1257 : US Code - Section 1257: Adjustment of status of certain resident aliens to nonimmigrant status; exceptions

(a) The status of an alien lawfully admitted for permanent
residence shall be adjusted by the Attorney General, under such
regulations as he may prescribe, to that of a nonimmigrant under
paragraph (15)(A), (E), or (G) of section 1101(a) of this title, if
such alien had at the time of admission or subsequently acquires an
occupational status which would, if he were seeking admission to
the United States, entitle him to a nonimmigrant status under such
paragraphs. As of the date of the Attorney General's order making
such adjustment of status, the Attorney General shall cancel the
record of the alien's admission for permanent residence, and the
immigrant status of such alien shall thereby be terminated.
(b) The adjustment of status required by subsection (a) of this
section shall not be applicable in the case of any alien who
requests that he be permitted to retain his status as an immigrant
and who, in such form as the Attorney General may require, executes
and files with the Attorney General a written waiver of all rights,
privileges, exemptions, and immunities under any law or any
executive order which would otherwise accrue to him because of the
acquisition of an occupational status entitling him to a
nonimmigrant status under paragraph (15)(A), (E), or (G) of section
1101(a) of this title.