H4 re-validation question

[INeedSomeHelp]

I switched company and got new H1, I also got my H1b stamped in my passport. For H4 visa to be stamped in spouse passport what are all the documents I need to send? Should the cover letter be from my wife or from me?
Thanks,
S

 

[INeedSomeHelp]

Also, I'm planning to send H4 application to St. Louis before July 16th. Please help.

 

[ashakthi]

Check the following link

http://travel.state.gov/hlop.html