Dear experts:

1. Can you define H1B visa for USA ?
2. Difference between H1B visa or Green Card or Immigration for USA ?
3. For what occupations H1B visa is issued ?
4. What are the requirements for H1B visa ?
5. For how long US visitor visa is issued from Toronto Consulate of USA for Permanent resident of Canada ?
6. Can I work in USA on visitor visa ?
7. Is sponsorship is necessary for visitor visa for Permanent Resident of Canada ?

I would appreciate your replies.

thanks in advance.

I've moved your post to the correct section.

Here's a link to some info on the H1B. You can even find U.S. immigration (greencard) info here. I'm sure a quick search in google will turn up tons of more information.

http://usaindians.com/immigration/h1bvisa.htm

Answers to shorter questions

5. It all depends. I know people who've been issued a visa for 10 years. The average may be about 2/3 years though, if all your stuff is in order.

6. NO.

7. No. You only need to give a reason and address where you'll be visiting.

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