may file a petition for an immigrant visa under section 203(c) during the period beginning on October 1, 2019, and ending on October 1, 2020. Such an alien may file such a petition from outside the United States. . (d) Effective date This section and the amendments made by this section shall take effect on October 1, 2019. 2105. Sunset of adjustment visas for conditional nonimmigrants and children of certain nonimmigrants (a) Sunset (1) In general Section 203 of the Immigration and Nationality Act ( 8 U.S.C. 1153 ) is amended by striking subsection (c). (2) Technical and conforming amendments The Immigration and Nationality Act ( 8 U.S.C. 1101 et seq.) is amended— (A) in section 201— (i) in subsection (a)— (I) in paragraph (1), by adding and at the end