Validity periods per country are listed in the U.S. Department of StateVisa Reciprocity Tables
and vary from 3 months for Iran, 1 year for China, 3 years for Russia,
and 5 years for Australia, to 10 years for Argentina, Brazil, Canada,
India, Israel, Japan, Malaysia, Mexico, Singapore, South Africa and most
European Countries.
Periods of stay for B-1 visas may be granted initially for a duration
long enough to allow the visitor to conduct their business, up to a
maximum of 6 months, and can be extended for another 6 months;[5] B-1 visas usually granted for three months or less, while B-2 visas are generally granted for six months.
追问What I am wondering is that, do I need to re-apply any visa even thought my visa is valid for ten year but I have had been to USA for one time.
追答我知道问题在哪里了
您看到的R是Visa Type/Class写的 那个和出入次数没关系
您看看在签证页面 护照号码下面 有个Entries 下面是m还是S
如果是M就是多次往返
如果是s就是单次=W=
今天没事翻自己的护照看正好看到了=W=
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