There are a number of visa to the US which depends on the applicant's category. Based on that, the duration of each visa varies. Maximum time allowed on a visa is 6 months. Extensions can be obtained if they are for genuine reasons.
The United States issues visas for entry into the country.
Individuals with B1/B2 visas can typically stay in the US for a period of up to six months per visit. It is important to adhere to the terms of the visa and not overstay the allowed duration.
Yes, the website ais.usvisa-info.com is legitimate for obtaining US visas.
It depends. There are temporary visas, up to 10-year visas.
If you are trying to ask, What should be the minimum validity required on VISA to enter US -It should be before your VISA Expiration date on your Passport, it can be a day before also, but immigration officer in US has full discretion to take any decisions.
I asked a simple question. how long immigrant administrative clearance take after interview, but nobody was answer it correctly,
Under the US Visa Waiver Program a British citizen is allowed 90 days in the US without any special visas.
Yes, if they have a valid SSN# and a state I.D.
Visas for Indians can be found online with lots of information. The official Beuro of Consular Affairs of the US Department of State has relevant information.
None if you are a US citizen.
You can find information about immigrant visas at the US State Department's website. There's a link in the "Related Links" section.
Typically the visa is valid for 10years but it's at the discretion of the officers. I've seen medical visas for as little as 6mts