Pub. L. 104-208, div. C, tit. VI, subtit. C, sec. 631
VALIDITY OF PERIOD OF VISAS.
SEC. 631. VALIDITY OF PERIOD OF VISAS. (a) Extension of Validity of Immigrant Visas to 6 Months.— Section 221(c) (8 U.S.C. 1201(c)) is amended by striking “four months” and inserting “six months”. 110 STAT. 3009–701 (b) Authorizing Application of Reciprocity Rule for Non-immigrant Visa in Case of Refugees and Permanent Residents.— Such section is further amended by inserting before the period at the end of the third sentence the following: “; except that in the case of aliens who are nationals of a foreign country and who either are granted refugee status and firmly resettled in another foreign country or are granted permanent residence and residing in another foreign country, the Secretary of State may prescribe the period of validity of such a visa based upon the treatment granted by that other foreign country to alien refugees and permanent residents, respectively, in the United States”.